94 surging/bucking problem

hello

i have a problem with my 94 that is puzzling me.

6speed
140k miles
no ses light
service ride control (z07 option) light is on, but that is a bad servo that
i know about
no other indicators on
new battery
alternator normal output
all other temp indicators in normal ranges

the symptoms started a few months ago. in top gear at high way speeds, it
will seem to miss when a demand is placed on the engine (going up a hill,
passing, etc). in the ensuing months, it seems to have gotten worse, in that
it now:

at idle (which used to be around 800rpm), it would start to hunt, going from
800-2000, with no throttle input. during around town driving, say in 4th at
45, the engine would speed up so the car would accelerate, with no throttle
changes being done by me. the pedal doesn't move under my foot, so it's not
a spring, i believe.

i replaced the iac valve and airfilter at this point. when the old one iac
was removed, it had a lot of crud on it. i cleaned out the opening to the
throttlebody, but didn't take it off for a complete cleaning. i also
replaced the water temp sensor, as i noticed the harness connector was
cracked.

the problem has now changed, in that the idle has dropped to an abnormal low
of 400 and seems to almost stall. it still has the missing and bucking at
constant speeds, and also misses pulling away from a stop.

i took it to my local mechanic, whom i've had for about 20 years. he noticed
that every time it surges, the service ride control light changes intensity.
he seems to feel that the computer is bad and is affecting the timing
somehow, and said i should take it to the chevy dealer.

could this be a fuel delivery problem (fuel pump, filter, bad injectors)?

are there any other sensors that this could be, or does this sound familiar,
and if so, are there tests for them so i don't have to start throwing
expensive parts at the problem?

thanks,
charlie
cave creek, az

"charlie" > wrote in
message ...
> hello
>
> i have a problem with my 94 that is puzzling me.
>
> 6speed
> 140k miles
> no ses light
> service ride control (z07 option) light is on, but that is
> a bad servo that i know about
> no other indicators on
> new battery
> alternator normal output
> all other temp indicators in normal ranges
>
> the symptoms started a few months ago. in top gear at high
> way speeds, it will seem to miss when a demand is placed
> on the engine (going up a hill, passing, etc). in the
> ensuing months, it seems to have gotten worse, in that it
> now:
>
> at idle (which used to be around 800rpm), it would start
> to hunt, going from 800-2000, with no throttle input.
> during around town driving, say in 4th at 45, the engine
> would speed up so the car would accelerate, with no
> throttle changes being done by me. the pedal doesn't move
> under my foot, so it's not a spring, i believe.
>
> i replaced the iac valve and airfilter at this point. when
> the old one iac was removed, it had a lot of crud on it. i
> cleaned out the opening to the throttlebody, but didn't
> take it off for a complete cleaning. i also replaced the
> water temp sensor, as i noticed the harness connector was
> cracked.
>
> the problem has now changed, in that the idle has dropped
> to an abnormal low of 400 and seems to almost stall. it
> still has the missing and bucking at constant speeds, and
> also misses pulling away from a stop.
>
> i took it to my local mechanic, whom i've had for about 20
> years. he noticed that every time it surges, the service
> ride control light changes intensity. he seems to feel
> that the computer is bad and is affecting the timing
> somehow, and said i should take it to the chevy dealer.
>
> could this be a fuel delivery problem (fuel pump, filter,
> bad injectors)?
>
> are there any other sensors that this could be, or does
> this sound familiar, and if so, are there tests for them
> so i don't have to start throwing expensive parts at the
> problem?
>
> thanks,
> charlie
> cave creek, az


you could try running some Lucus fuel injector cleaner
through a tank of gas,
then replace the gas filter.

my2¢
--
"Key"
=====

Key had a good point, but I am also thinking possible OptiSpark
issue. Could be either side of the equation really, fuel or spark.
Frustrating!

charlie wrote:

>hello
>
>i have a problem with my 94 that is puzzling me.
>
>6speed
>140k miles
>no ses light
>service ride control (z07 option) light is on, but that is a bad servo that
>i know about
>no other indicators on
>new battery
>alternator normal output
>all other temp indicators in normal ranges
>
>the symptoms started a few months ago. in top gear at high way speeds, it
>will seem to miss when a demand is placed on the engine (going up a hill,
>passing, etc). in the ensuing months, it seems to have gotten worse, in that
>it now:
>
>at idle (which used to be around 800rpm), it would start to hunt, going from
>800-2000, with no throttle input. during around town driving, say in 4th at
>45, the engine would speed up so the car would accelerate, with no throttle
>changes being done by me. the pedal doesn't move under my foot, so it's not
>a spring, i believe.
>
>i replaced the iac valve and airfilter at this point. when the old one iac
>was removed, it had a lot of crud on it. i cleaned out the opening to the
>throttlebody, but didn't take it off for a complete cleaning. i also
>replaced the water temp sensor, as i noticed the harness connector was
>cracked.
>
>the problem has now changed, in that the idle has dropped to an abnormal low
>of 400 and seems to almost stall. it still has the missing and bucking at
>constant speeds, and also misses pulling away from a stop.
>
>i took it to my local mechanic, whom i've had for about 20 years. he noticed
>that every time it surges, the service ride control light changes intensity.
>he seems to feel that the computer is bad and is affecting the timing
>somehow, and said i should take it to the chevy dealer.
>
>could this be a fuel delivery problem (fuel pump, filter, bad injectors)?
>
>are there any other sensors that this could be, or does this sound familiar,
>and if so, are there tests for them so i don't have to start throwing
>expensive parts at the problem?
>
>thanks,
>charlie
>cave creek, az
>
>
>
>

--
Ric Seyler
Online Racing: RicSeyler
GPL Handicap 6.35

http://www.pcola.gulf.net/~ricseyler
remove –SPAM- from email address
--------------------------------------
"Homer no function beer well without."
- H.J. Simpson

"Ric Seyler" > wrote in message
...
> Key had a good point, but I am also thinking possible OptiSpark
> issue. Could be either side of the equation really, fuel or spark.
> Frustrating!
>
> charlie wrote:
>
>>hello
>>
>>i have a problem with my 94 that is puzzling me.
>>
>>6speed
>>140k miles
>>no ses light
>>service ride control (z07 option) light is on, but that is a bad servo
>>that i know about
>>no other indicators on
>>new battery
>>alternator normal output
>>all other temp indicators in normal ranges
>>
>>the symptoms started a few months ago. in top gear at high way speeds, it
>>will seem to miss when a demand is placed on the engine (going up a hill,
>>passing, etc). in the ensuing months, it seems to have gotten worse, in
>>that it now:
>>
>>at idle (which used to be around 800rpm), it would start to hunt, going
>>from 800-2000, with no throttle input. during around town driving, say in
>>4th at 45, the engine would speed up so the car would accelerate, with no
>>throttle changes being done by me. the pedal doesn't move under my foot,
>>so it's not a spring, i believe.
>>
>>i replaced the iac valve and airfilter at this point. when the old one iac
>>was removed, it had a lot of crud on it. i cleaned out the opening to the
>>throttlebody, but didn't take it off for a complete cleaning. i also
>>replaced the water temp sensor, as i noticed the harness connector was
>>cracked.
>>
>>the problem has now changed, in that the idle has dropped to an abnormal
>>low of 400 and seems to almost stall. it still has the missing and bucking
>>at constant speeds, and also misses pulling away from a stop.
>>
>>i took it to my local mechanic, whom i've had for about 20 years. he
>>noticed that every time it surges, the service ride control light changes
>>intensity. he seems to feel that the computer is bad and is affecting the
>>timing somehow, and said i should take it to the chevy dealer.
>>
>>could this be a fuel delivery problem (fuel pump, filter, bad injectors)?
>>
>>are there any other sensors that this could be, or does this sound
>>familiar, and if so, are there tests for them so i don't have to start
>>throwing expensive parts at the problem?

actually, before i replaced the water temp sensor, that plug had fallen out,
and the engine went from occasionally missing, to missing constantly and not
having any power at all, basically stranding me. when i plugged this sensor
cable back in, it went back to the odd and occasional miss. that's what led
me to think it may be some bad sensor or even a wiring harness problem.

i guess i'll try the fuel cleaner and filter first. dumb question: where is
the fuel filter? i have a shop manual for this car, but it must have been a
pre-release version, as a lot of the sections seem to be missing, stating
'see 1993 year manual for this section', and most of the engine sections are
missing. the manual came with the car, which was a very early 94 press car.

thanks,
charlie
cave creek, az

"charlie" > wrote in
message ...
>
> "Ric Seyler" > wrote in message
> ...
>> Key had a good point, but I am also thinking possible
>> OptiSpark
>> issue. Could be either side of the equation really, fuel
>> or spark. Frustrating!
>>
>> charlie wrote:
>>
>>>hello
>>>
>>>i have a problem with my 94 that is puzzling me.
>>>
>>>6speed
>>>140k miles
>>>no ses light
>>>service ride control (z07 option) light is on, but that
>>>is a bad servo that i know about
>>>no other indicators on
>>>new battery
>>>alternator normal output
>>>all other temp indicators in normal ranges
>>>
>>>the symptoms started a few months ago. in top gear at
>>>high way speeds, it will seem to miss when a demand is
>>>placed on the engine (going up a hill, passing, etc). in
>>>the ensuing months, it seems to have gotten worse, in
>>>that it now:
>>>
>>>at idle (which used to be around 800rpm), it would start
>>>to hunt, going from 800-2000, with no throttle input.
>>>during around town driving, say in 4th at 45, the engine
>>>would speed up so the car would accelerate, with no
>>>throttle changes being done by me. the pedal doesn't move
>>>under my foot, so it's not a spring, i believe.
>>>
>>>i replaced the iac valve and airfilter at this point.
>>>when the old one iac was removed, it had a lot of crud on
>>>it. i cleaned out the opening to the throttlebody, but
>>>didn't take it off for a complete cleaning. i also
>>>replaced the water temp sensor, as i noticed the harness
>>>connector was cracked.
>>>
>>>the problem has now changed, in that the idle has dropped
>>>to an abnormal low of 400 and seems to almost stall. it
>>>still has the missing and bucking at constant speeds, and
>>>also misses pulling away from a stop.
>>>
>>>i took it to my local mechanic, whom i've had for about
>>>20 years. he noticed that every time it surges, the
>>>service ride control light changes intensity. he seems to
>>>feel that the computer is bad and is affecting the timing
>>>somehow, and said i should take it to the chevy dealer.
>>>
>>>could this be a fuel delivery problem (fuel pump, filter,
>>>bad injectors)?
>>>
>>>are there any other sensors that this could be, or does
>>>this sound familiar, and if so, are there tests for them
>>>so i don't have to start throwing expensive parts at the
>>>problem?
>
> actually, before i replaced the water temp sensor, that
> plug had fallen out, and the engine went from occasionally
> missing, to missing constantly and not having any power at
> all, basically stranding me. when i plugged this sensor
> cable back in, it went back to the odd and occasional
> miss. that's what led me to think it may be some bad
> sensor or even a wiring harness problem.
>
> i guess i'll try the fuel cleaner and filter first. dumb
> question: where is the fuel filter? i have a shop manual
> for this car, but it must have been a pre-release version,
> as a lot of the sections seem to be missing, stating 'see
> 1993 year manual for this section', and most of the engine
> sections are missing. the manual came with the car, which
> was a very early 94 press car.
>
> thanks,
> charlie
> cave creek, az

on an 89
the fuel filter is along the inside of the frame rail just
behind the right front tire.
not real sure if its the same place on your 94.

g'luck
--
"Key"
=====

On my 93 convertible, it's there under the cross brace.

"'Key" > wrote in message
. ..
> "charlie" > wrote in message
> ...
>>
>> "Ric Seyler" > wrote in message
>> ...
>>> Key had a good point, but I am also thinking possible OptiSpark
>>> issue. Could be either side of the equation really, fuel or spark.
>>> Frustrating!
>>>
>>> charlie wrote:
>>>
>>>>hello
>>>>
>>>>i have a problem with my 94 that is puzzling me.
>>>>
>>>>6speed
>>>>140k miles
>>>>no ses light
>>>>service ride control (z07 option) light is on, but that is a bad servo
>>>>that i know about
>>>>no other indicators on
>>>>new battery
>>>>alternator normal output
>>>>all other temp indicators in normal ranges
>>>>
>>>>the symptoms started a few months ago. in top gear at high way speeds,
>>>>it will seem to miss when a demand is placed on the engine (going up a
>>>>hill, passing, etc). in the ensuing months, it seems to have gotten
>>>>worse, in that it now:
>>>>
>>>>at idle (which used to be around 800rpm), it would start to hunt, going
>>>>from 800-2000, with no throttle input. during around town driving, say
>>>>in 4th at 45, the engine would speed up so the car would accelerate,
>>>>with no throttle changes being done by me. the pedal doesn't move under
>>>>my foot, so it's not a spring, i believe.
>>>>
>>>>i replaced the iac valve and airfilter at this point. when the old one
>>>>iac was removed, it had a lot of crud on it. i cleaned out the opening
>>>>to the throttlebody, but didn't take it off for a complete cleaning. i
>>>>also replaced the water temp sensor, as i noticed the harness connector
>>>>was cracked.
>>>>
>>>>the problem has now changed, in that the idle has dropped to an abnormal
>>>>low of 400 and seems to almost stall. it still has the missing and
>>>>bucking at constant speeds, and also misses pulling away from a stop.
>>>>
>>>>i took it to my local mechanic, whom i've had for about 20 years. he
>>>>noticed that every time it surges, the service ride control light
>>>>changes intensity. he seems to feel that the computer is bad and is
>>>>affecting the timing somehow, and said i should take it to the chevy
>>>>dealer.
>>>>
>>>>could this be a fuel delivery problem (fuel pump, filter, bad
>>>>injectors)?
>>>>
>>>>are there any other sensors that this could be, or does this sound
>>>>familiar, and if so, are there tests for them so i don't have to start
>>>>throwing expensive parts at the problem?
>>
>> actually, before i replaced the water temp sensor, that plug had fallen
>> out, and the engine went from occasionally missing, to missing constantly
>> and not having any power at all, basically stranding me. when i plugged
>> this sensor cable back in, it went back to the odd and occasional miss.
>> that's what led me to think it may be some bad sensor or even a wiring
>> harness problem.
>>
>> i guess i'll try the fuel cleaner and filter first. dumb question: where
>> is the fuel filter? i have a shop manual for this car, but it must have
>> been a pre-release version, as a lot of the sections seem to be missing,
>> stating 'see 1993 year manual for this section', and most of the engine
>> sections are missing. the manual came with the car, which was a very
>> early 94 press car.
>>
>> thanks,
>> charlie
>> cave creek, az
>
> on an 89
> the fuel filter is along the inside of the frame rail just behind the
> right front tire.
> not real sure if its the same place on your 94.
>
> g'luck
> --
> "Key"
> =====
>
>

charlie wrote:

>"Ric Seyler" > wrote in message
.. .
>
>
>>Key had a good point, but I am also thinking possible OptiSpark
>>issue. Could be either side of the equation really, fuel or spark.
>>Frustrating!
>>
>>charlie wrote:
>>
>>
>>
>>>hello
>>>
>>>i have a problem with my 94 that is puzzling me.
>>>
>>>6speed
>>>140k miles
>>>no ses light
>>>service ride control (z07 option) light is on, but that is a bad servo
>>>that i know about
>>>no other indicators on
>>>new battery
>>>alternator normal output
>>>all other temp indicators in normal ranges
>>>
>>>the symptoms started a few months ago. in top gear at high way speeds, it
>>>will seem to miss when a demand is placed on the engine (going up a hill,
>>>passing, etc). in the ensuing months, it seems to have gotten worse, in
>>>that it now:
>>>
>>>at idle (which used to be around 800rpm), it would start to hunt, going
>>>
>>>
>>>from 800-2000, with no throttle input. during around town driving, say in
>>
>>
>>>4th at 45, the engine would speed up so the car would accelerate, with no
>>>throttle changes being done by me. the pedal doesn't move under my foot,
>>>so it's not a spring, i believe.
>>>
>>>i replaced the iac valve and airfilter at this point. when the old one iac
>>>was removed, it had a lot of crud on it. i cleaned out the opening to the
>>>throttlebody, but didn't take it off for a complete cleaning. i also
>>>replaced the water temp sensor, as i noticed the harness connector was
>>>cracked.
>>>
>>>the problem has now changed, in that the idle has dropped to an abnormal
>>>low of 400 and seems to almost stall. it still has the missing and bucking
>>>at constant speeds, and also misses pulling away from a stop.
>>>
>>>i took it to my local mechanic, whom i've had for about 20 years. he
>>>noticed that every time it surges, the service ride control light changes
>>>intensity. he seems to feel that the computer is bad and is affecting the
>>>timing somehow, and said i should take it to the chevy dealer.
>>>
>>>could this be a fuel delivery problem (fuel pump, filter, bad injectors)?
>>>
>>>are there any other sensors that this could be, or does this sound
>>>familiar, and if so, are there tests for them so i don't have to start
>>>throwing expensive parts at the problem?
>>>
>>>
>
>actually, before i replaced the water temp sensor, that plug had fallen out,
>and the engine went from occasionally missing, to missing constantly and not
>having any power at all, basically stranding me. when i plugged this sensor
>cable back in, it went back to the odd and occasional miss. that's what led
>me to think it may be some bad sensor or even a wiring harness problem.
>
>i guess i'll try the fuel cleaner and filter first. dumb question: where is
>the fuel filter? i have a shop manual for this car, but it must have been a
>pre-release version, as a lot of the sections seem to be missing, stating
>'see 1993 year manual for this section', and most of the engine sections are
>missing. the manual came with the car, which was a very early 94 press car.
>
>thanks,
>charlie
>cave creek, az
>
>
>
>
It could be a sensor also! ARRGGHH! LOL
Maybe take it and have it scanned?

--
Ric Seyler
Online Racing: RicSeyler
GPL Handicap 6.35

http://www.pcola.gulf.net/~ricseyler
remove -SPAM- from email address
--------------------------------------
"Homer no function beer well without."
- H.J. Simpson

"'Key" > wrote in message
. ..
> "charlie" > wrote in message
> ...
>>
>> "Ric Seyler" > wrote in message
>> ...
>>> Key had a good point, but I am also thinking possible OptiSpark
>>> issue. Could be either side of the equation really, fuel or spark.
>>> Frustrating!
>>>
>>> charlie wrote:
>>>
>>>>hello
>>>>
>>>>i have a problem with my 94 that is puzzling me.
>>>>
>>>>6speed
>>>>140k miles
>>>>no ses light
>>>>service ride control (z07 option) light is on, but that is a bad servo
>>>>that i know about
>>>>no other indicators on
>>>>new battery
>>>>alternator normal output
>>>>all other temp indicators in normal ranges
>>>>
>>>>the symptoms started a few months ago. in top gear at high way speeds,
>>>>it will seem to miss when a demand is placed on the engine (going up a
>>>>hill, passing, etc). in the ensuing months, it seems to have gotten
>>>>worse, in that it now:
>>>>
>>>>at idle (which used to be around 800rpm), it would start to hunt, going
>>>>from 800-2000, with no throttle input. during around town driving, say
>>>>in 4th at 45, the engine would speed up so the car would accelerate,
>>>>with no throttle changes being done by me. the pedal doesn't move under
>>>>my foot, so it's not a spring, i believe.
>>>>
>>>>i replaced the iac valve and airfilter at this point. when the old one
>>>>iac was removed, it had a lot of crud on it. i cleaned out the opening
>>>>to the throttlebody, but didn't take it off for a complete cleaning. i
>>>>also replaced the water temp sensor, as i noticed the harness connector
>>>>was cracked.
>>>>
>>>>the problem has now changed, in that the idle has dropped to an abnormal
>>>>low of 400 and seems to almost stall. it still has the missing and
>>>>bucking at constant speeds, and also misses pulling away from a stop.
>>>>
>>>>i took it to my local mechanic, whom i've had for about 20 years. he
>>>>noticed that every time it surges, the service ride control light
>>>>changes intensity. he seems to feel that the computer is bad and is
>>>>affecting the timing somehow, and said i should take it to the chevy
>>>>dealer.
>>>>
>>>>could this be a fuel delivery problem (fuel pump, filter, bad
>>>>injectors)?
>>>>
>>>>are there any other sensors that this could be, or does this sound
>>>>familiar, and if so, are there tests for them so i don't have to start
>>>>throwing expensive parts at the problem?
>>
>> actually, before i replaced the water temp sensor, that plug had fallen
>> out, and the engine went from occasionally missing, to missing constantly
>> and not having any power at all, basically stranding me. when i plugged
>> this sensor cable back in, it went back to the odd and occasional miss.
>> that's what led me to think it may be some bad sensor or even a wiring
>> harness problem.
>>
>> i guess i'll try the fuel cleaner and filter first. dumb question: where
>> is the fuel filter? i have a shop manual for this car, but it must have
>> been a pre-release version, as a lot of the sections seem to be missing,
>> stating 'see 1993 year manual for this section', and most of the engine
>> sections are missing. the manual came with the car, which was a very
>> early 94 press car.
>>
>> thanks,
>> charlie
>> cave creek, az
>
> on an 89
> the fuel filter is along the inside of the frame rail just behind the
> right front tire.
> not real sure if its the same place on your 94.
>

On my 1990, its the same as the 89 - strange place to have one.
You have to remove the tire to get to it (unless you can
elevate the car).

Empty3

When was the last time the spark plugs were checked/changed?

charlie wrote:
> hello
>
> i have a problem with my 94 that is puzzling me.
>
> 6speed
> 140k miles
> no ses light
> service ride control (z07 option) light is on, but that is a bad servo that
> i know about
> no other indicators on
> new battery
> alternator normal output
> all other temp indicators in normal ranges
>
> the symptoms started a few months ago. in top gear at high way speeds, it
> will seem to miss when a demand is placed on the engine (going up a hill,
> passing, etc). in the ensuing months, it seems to have gotten worse, in that
> it now:
>
> at idle (which used to be around 800rpm), it would start to hunt, going from
> 800-2000, with no throttle input. during around town driving, say in 4th at
> 45, the engine would speed up so the car would accelerate, with no throttle
> changes being done by me. the pedal doesn't move under my foot, so it's not
> a spring, i believe.
>
> i replaced the iac valve and airfilter at this point. when the old one iac
> was removed, it had a lot of crud on it. i cleaned out the opening to the
> throttlebody, but didn't take it off for a complete cleaning. i also
> replaced the water temp sensor, as i noticed the harness connector was
> cracked.
>
> the problem has now changed, in that the idle has dropped to an abnormal low
> of 400 and seems to almost stall. it still has the missing and bucking at
> constant speeds, and also misses pulling away from a stop.
>
> i took it to my local mechanic, whom i've had for about 20 years. he noticed
> that every time it surges, the service ride control light changes intensity.
> he seems to feel that the computer is bad and is affecting the timing
> somehow, and said i should take it to the chevy dealer.
>
> could this be a fuel delivery problem (fuel pump, filter, bad injectors)?
>
> are there any other sensors that this could be, or does this sound familiar,
> and if so, are there tests for them so i don't have to start throwing
> expensive parts at the problem?
>
> thanks,
> charlie
> cave creek, az
>
>

"Bob I" > wrote in message
...
> When was the last time the spark plugs were checked/changed?
>
> charlie wrote:
>> hello
>>
>> i have a problem with my 94 that is puzzling me.
>>
>> 6speed
>> 140k miles
>> no ses light
>> service ride control (z07 option) light is on, but that is a bad servo
>> that i know about
>> no other indicators on
>> new battery
>> alternator normal output
>> all other temp indicators in normal ranges
>>
>> the symptoms started a few months ago. in top gear at high way speeds, it
>> will seem to miss when a demand is placed on the engine (going up a hill,
>> passing, etc). in the ensuing months, it seems to have gotten worse, in
>> that it now:
>>
>> at idle (which used to be around 800rpm), it would start to hunt, going
>> from 800-2000, with no throttle input. during around town driving, say in
>> 4th at 45, the engine would speed up so the car would accelerate, with no
>> throttle changes being done by me. the pedal doesn't move under my foot,
>> so it's not a spring, i believe.
>>
>> i replaced the iac valve and airfilter at this point. when the old one
>> iac was removed, it had a lot of crud on it. i cleaned out the opening to
>> the throttlebody, but didn't take it off for a complete cleaning. i also
>> replaced the water temp sensor, as i noticed the harness connector was
>> cracked.
>>
>> the problem has now changed, in that the idle has dropped to an abnormal
>> low of 400 and seems to almost stall. it still has the missing and
>> bucking at constant speeds, and also misses pulling away from a stop.
>>
>> i took it to my local mechanic, whom i've had for about 20 years. he
>> noticed that every time it surges, the service ride control light changes
>> intensity. he seems to feel that the computer is bad and is affecting the
>> timing somehow, and said i should take it to the chevy dealer.
>>
>> could this be a fuel delivery problem (fuel pump, filter, bad injectors)?
>>
>> are there any other sensors that this could be, or does this sound
>> familiar, and if so, are there tests for them so i don't have to start
>> throwing expensive parts at the problem?
>>
>> thanks,
>> charlie
>> cave creek, az

100k miles ago, at least.