90 spirit won't run

Alright - here's an update. We checked the resistance to the ECM from the
speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
noticeable resistance was the ground from the fuel injector cap, which read
between 9 and 10 ohms. I was able to keep the car idling using starting fluid.
While it was idling, the hot wire going to the fuel injector cap was reading a
steady 14V.
From this info, I have a few questions.
1. I assume I should replace the ground wire from the fuel injector cap - 9
ohms is way too high.
2. Is the 14V for the injector cap within reason?
3. Is there anything else it could be besides the fuel pressure or the
injector itself? I'm checking to see if I can get my hands on a fuel pressure
guage tonight.
Thanks,
Wes

In article >,
(Faulguys) wrote:

> Alright - here's an update. We checked the resistance to the ECM from the
> speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
> noticeable resistance was the ground from the fuel injector cap, which read
> between 9 and 10 ohms. I was able to keep the car idling using starting
> fluid.
> While it was idling, the hot wire going to the fuel injector cap was reading
> a
> steady 14V.
> From this info, I have a few questions.
> 1. I assume I should replace the ground wire from the fuel injector cap - 9
> ohms is way too high.

There is no ground from the fuel injector.
One terminal of the injector is fed constant12 volts (14ish with
engine running), the other terminal is pulled to ground thru the
ECM.
9 ohms is meaningless, a voltage drop would be a more meaningful
measurement. Tough to do without an oscilloscope though...

> 2. Is the 14V for the injector cap within reason?

14 volts is nominal when the engine is running and the alternator
is functioning correctly.

> 3. Is there anything else it could be besides the fuel pressure or the
> injector itself? I'm checking to see if I can get my hands on a fuel
> pressure
> guage tonight.

You haven't checked fuel pressure and volume yet?

In article >,
(Faulguys) wrote:

> Alright - here's an update. We checked the resistance to the ECM from the
> speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
> noticeable resistance was the ground from the fuel injector cap, which read
> between 9 and 10 ohms. I was able to keep the car idling using starting
> fluid.
> While it was idling, the hot wire going to the fuel injector cap was reading
> a
> steady 14V.
> From this info, I have a few questions.
> 1. I assume I should replace the ground wire from the fuel injector cap - 9
> ohms is way too high.

There is no ground from the fuel injector.
One terminal of the injector is fed constant12 volts (14ish with
engine running), the other terminal is pulled to ground thru the
ECM.
9 ohms is meaningless, a voltage drop would be a more meaningful
measurement. Tough to do without an oscilloscope though...

> 2. Is the 14V for the injector cap within reason?

14 volts is nominal when the engine is running and the alternator
is functioning correctly.

> 3. Is there anything else it could be besides the fuel pressure or the
> injector itself? I'm checking to see if I can get my hands on a fuel
> pressure
> guage tonight.

You haven't checked fuel pressure and volume yet?

Alright - I took a look at it again last night. Fuel Pressure was reading a
steady ~14 PSI which should be fine (14.5 is what the manual said). I
looked down the throttle body while my brother cranked it over last night
and I think I found the problem. Fuel is injected when it's cranking and
when you first step on the gas pedal. It does NOT continue to inject when
it idles or while you hold the gas down. I don't have an oscilloscope, but
my multimeter showed a constant 14V at the fuel injector, so it should be
injecting fuel. I called the local dodge dealer, and the technician said it
sounded like the fuel pressure regulator. I guess I'll replace that tonight
and see if that fixes it.
Any other suggestions on what it could be?
Thanks,
Wes

"aarcuda69062" > wrote in message
...
> In article >,
> (Faulguys) wrote:
>
> > Alright - here's an update. We checked the resistance to the ECM from
the
> > speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
> > noticeable resistance was the ground from the fuel injector cap, which
read
> > between 9 and 10 ohms. I was able to keep the car idling using starting
> > fluid.
> > While it was idling, the hot wire going to the fuel injector cap was
reading
> > a
> > steady 14V.
> > From this info, I have a few questions.
> > 1. I assume I should replace the ground wire from the fuel injector
cap - 9
> > ohms is way too high.
>
> There is no ground from the fuel injector.
> One terminal of the injector is fed constant12 volts (14ish with
> engine running), the other terminal is pulled to ground thru the
> ECM.
> 9 ohms is meaningless, a voltage drop would be a more meaningful
> measurement. Tough to do without an oscilloscope though...
>
> > 2. Is the 14V for the injector cap within reason?
>
> 14 volts is nominal when the engine is running and the alternator
> is functioning correctly.
>
> > 3. Is there anything else it could be besides the fuel pressure or the
> > injector itself? I'm checking to see if I can get my hands on a fuel
> > pressure
> > guage tonight.
>
> You haven't checked fuel pressure and volume yet?

Alright - I took a look at it again last night. Fuel Pressure was reading a
steady ~14 PSI which should be fine (14.5 is what the manual said). I
looked down the throttle body while my brother cranked it over last night
and I think I found the problem. Fuel is injected when it's cranking and
when you first step on the gas pedal. It does NOT continue to inject when
it idles or while you hold the gas down. I don't have an oscilloscope, but
my multimeter showed a constant 14V at the fuel injector, so it should be
injecting fuel. I called the local dodge dealer, and the technician said it
sounded like the fuel pressure regulator. I guess I'll replace that tonight
and see if that fixes it.
Any other suggestions on what it could be?
Thanks,
Wes

"aarcuda69062" > wrote in message
...
> In article >,
> (Faulguys) wrote:
>
> > Alright - here's an update. We checked the resistance to the ECM from
the
> > speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
> > noticeable resistance was the ground from the fuel injector cap, which
read
> > between 9 and 10 ohms. I was able to keep the car idling using starting
> > fluid.
> > While it was idling, the hot wire going to the fuel injector cap was
reading
> > a
> > steady 14V.
> > From this info, I have a few questions.
> > 1. I assume I should replace the ground wire from the fuel injector
cap - 9
> > ohms is way too high.
>
> There is no ground from the fuel injector.
> One terminal of the injector is fed constant12 volts (14ish with
> engine running), the other terminal is pulled to ground thru the
> ECM.
> 9 ohms is meaningless, a voltage drop would be a more meaningful
> measurement. Tough to do without an oscilloscope though...
>
> > 2. Is the 14V for the injector cap within reason?
>
> 14 volts is nominal when the engine is running and the alternator
> is functioning correctly.
>
> > 3. Is there anything else it could be besides the fuel pressure or the
> > injector itself? I'm checking to see if I can get my hands on a fuel
> > pressure
> > guage tonight.
>
> You haven't checked fuel pressure and volume yet?

Is there a way to test the fuel pressure regulator? When I tested the fuel
pressure, I pinched off the return line, and the pressure (on the intake)
did increase.
Wes

"Wes Faul" > wrote in message
...
> Alright - I took a look at it again last night. Fuel Pressure was reading
a
> steady ~14 PSI which should be fine (14.5 is what the manual said). I
> looked down the throttle body while my brother cranked it over last night
> and I think I found the problem. Fuel is injected when it's cranking and
> when you first step on the gas pedal. It does NOT continue to inject when
> it idles or while you hold the gas down. I don't have an oscilloscope,
but
> my multimeter showed a constant 14V at the fuel injector, so it should be
> injecting fuel. I called the local dodge dealer, and the technician said
it
> sounded like the fuel pressure regulator. I guess I'll replace that
tonight
> and see if that fixes it.
> Any other suggestions on what it could be?
> Thanks,
> Wes
>
> "aarcuda69062" > wrote in message
> ...
> > In article >,
> > (Faulguys) wrote:
> >
> > > Alright - here's an update. We checked the resistance to the ECM from
> the
> > > speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
> > > noticeable resistance was the ground from the fuel injector cap, which
> read
> > > between 9 and 10 ohms. I was able to keep the car idling using
starting
> > > fluid.
> > > While it was idling, the hot wire going to the fuel injector cap was
> reading
> > > a
> > > steady 14V.
> > > From this info, I have a few questions.
> > > 1. I assume I should replace the ground wire from the fuel injector
> cap - 9
> > > ohms is way too high.
> >
> > There is no ground from the fuel injector.
> > One terminal of the injector is fed constant12 volts (14ish with
> > engine running), the other terminal is pulled to ground thru the
> > ECM.
> > 9 ohms is meaningless, a voltage drop would be a more meaningful
> > measurement. Tough to do without an oscilloscope though...
> >
> > > 2. Is the 14V for the injector cap within reason?
> >
> > 14 volts is nominal when the engine is running and the alternator
> > is functioning correctly.
> >
> > > 3. Is there anything else it could be besides the fuel pressure or
the
> > > injector itself? I'm checking to see if I can get my hands on a fuel
> > > pressure
> > > guage tonight.
> >
> > You haven't checked fuel pressure and volume yet?
>
>

Is there a way to test the fuel pressure regulator? When I tested the fuel
pressure, I pinched off the return line, and the pressure (on the intake)
did increase.
Wes

"Wes Faul" > wrote in message
...
> Alright - I took a look at it again last night. Fuel Pressure was reading
a
> steady ~14 PSI which should be fine (14.5 is what the manual said). I
> looked down the throttle body while my brother cranked it over last night
> and I think I found the problem. Fuel is injected when it's cranking and
> when you first step on the gas pedal. It does NOT continue to inject when
> it idles or while you hold the gas down. I don't have an oscilloscope,
but
> my multimeter showed a constant 14V at the fuel injector, so it should be
> injecting fuel. I called the local dodge dealer, and the technician said
it
> sounded like the fuel pressure regulator. I guess I'll replace that
tonight
> and see if that fixes it.
> Any other suggestions on what it could be?
> Thanks,
> Wes
>
> "aarcuda69062" > wrote in message
> ...
> > In article >,
> > (Faulguys) wrote:
> >
> > > Alright - here's an update. We checked the resistance to the ECM from
> the
> > > speed sensor, TPS, AIS, and fuel injector cap. The only thing with a
> > > noticeable resistance was the ground from the fuel injector cap, which
> read
> > > between 9 and 10 ohms. I was able to keep the car idling using
starting
> > > fluid.
> > > While it was idling, the hot wire going to the fuel injector cap was
> reading
> > > a
> > > steady 14V.
> > > From this info, I have a few questions.
> > > 1. I assume I should replace the ground wire from the fuel injector
> cap - 9
> > > ohms is way too high.
> >
> > There is no ground from the fuel injector.
> > One terminal of the injector is fed constant12 volts (14ish with
> > engine running), the other terminal is pulled to ground thru the
> > ECM.
> > 9 ohms is meaningless, a voltage drop would be a more meaningful
> > measurement. Tough to do without an oscilloscope though...
> >
> > > 2. Is the 14V for the injector cap within reason?
> >
> > 14 volts is nominal when the engine is running and the alternator
> > is functioning correctly.
> >
> > > 3. Is there anything else it could be besides the fuel pressure or
the
> > > injector itself? I'm checking to see if I can get my hands on a fuel
> > > pressure
> > > guage tonight.
> >
> > You haven't checked fuel pressure and volume yet?
>
>

ok first of all you only have 3 seconds of spark and fuel, if the engine
does not start within that time frame it shuts both off untill restarted
again,second, if you push on the gas pedal while cranking the engine, this
could cut the fuel off if you pump it., it sounds as if you have fuel
pressure and the regulator is doing its job properly.If you see fuel
spraying as you crank it and it does not start you have some other problem,
if you have spark and fuel, you need to check the timing belt for proper
settings, If you e mail me back i wont get your message for awhile, i just
read the ones you sent me a few days ago, post here and i will try to help
you out, o yes, if you keep trying to start the engine, the injectors spray
fuel in the cylinders, this could also cause a flooded condition and make
the engine a no start
"Wes Faul" > wrote in message
...
> Is there a way to test the fuel pressure regulator? When I tested the
fuel
> pressure, I pinched off the return line, and the pressure (on the intake)
> did increase.
> Wes
>
> "Wes Faul" > wrote in message
> ...
> > Alright - I took a look at it again last night. Fuel Pressure was
reading
> a
> > steady ~14 PSI which should be fine (14.5 is what the manual said). I
> > looked down the throttle body while my brother cranked it over last
night
> > and I think I found the problem. Fuel is injected when it's cranking
and
> > when you first step on the gas pedal. It does NOT continue to inject
when
> > it idles or while you hold the gas down. I don't have an oscilloscope,
> but
> > my multimeter showed a constant 14V at the fuel injector, so it should
be
> > injecting fuel. I called the local dodge dealer, and the technician
said
> it
> > sounded like the fuel pressure regulator. I guess I'll replace that
> tonight
> > and see if that fixes it.
> > Any other suggestions on what it could be?
> > Thanks,
> > Wes
> >
> > "aarcuda69062" > wrote in message
> > ...
> > > In article >,
> > > (Faulguys) wrote:
> > >
> > > > Alright - here's an update. We checked the resistance to the ECM
from
> > the
> > > > speed sensor, TPS, AIS, and fuel injector cap. The only thing with
a
> > > > noticeable resistance was the ground from the fuel injector cap,
which
> > read
> > > > between 9 and 10 ohms. I was able to keep the car idling using
> starting
> > > > fluid.
> > > > While it was idling, the hot wire going to the fuel injector cap
was
> > reading
> > > > a
> > > > steady 14V.
> > > > From this info, I have a few questions.
> > > > 1. I assume I should replace the ground wire from the fuel injector
> > cap - 9
> > > > ohms is way too high.
> > >
> > > There is no ground from the fuel injector.
> > > One terminal of the injector is fed constant12 volts (14ish with
> > > engine running), the other terminal is pulled to ground thru the
> > > ECM.
> > > 9 ohms is meaningless, a voltage drop would be a more meaningful
> > > measurement. Tough to do without an oscilloscope though...
> > >
> > > > 2. Is the 14V for the injector cap within reason?
> > >
> > > 14 volts is nominal when the engine is running and the alternator
> > > is functioning correctly.
> > >
> > > > 3. Is there anything else it could be besides the fuel pressure or
> the
> > > > injector itself? I'm checking to see if I can get my hands on a
fuel
> > > > pressure
> > > > guage tonight.
> > >
> > > You haven't checked fuel pressure and volume yet?
> >
> >
>
>

ok first of all you only have 3 seconds of spark and fuel, if the engine
does not start within that time frame it shuts both off untill restarted
again,second, if you push on the gas pedal while cranking the engine, this
could cut the fuel off if you pump it., it sounds as if you have fuel
pressure and the regulator is doing its job properly.If you see fuel
spraying as you crank it and it does not start you have some other problem,
if you have spark and fuel, you need to check the timing belt for proper
settings, If you e mail me back i wont get your message for awhile, i just
read the ones you sent me a few days ago, post here and i will try to help
you out, o yes, if you keep trying to start the engine, the injectors spray
fuel in the cylinders, this could also cause a flooded condition and make
the engine a no start
"Wes Faul" > wrote in message
...
> Is there a way to test the fuel pressure regulator? When I tested the
fuel
> pressure, I pinched off the return line, and the pressure (on the intake)
> did increase.
> Wes
>
> "Wes Faul" > wrote in message
> ...
> > Alright - I took a look at it again last night. Fuel Pressure was
reading
> a
> > steady ~14 PSI which should be fine (14.5 is what the manual said). I
> > looked down the throttle body while my brother cranked it over last
night
> > and I think I found the problem. Fuel is injected when it's cranking
and
> > when you first step on the gas pedal. It does NOT continue to inject
when
> > it idles or while you hold the gas down. I don't have an oscilloscope,
> but
> > my multimeter showed a constant 14V at the fuel injector, so it should
be
> > injecting fuel. I called the local dodge dealer, and the technician
said
> it
> > sounded like the fuel pressure regulator. I guess I'll replace that
> tonight
> > and see if that fixes it.
> > Any other suggestions on what it could be?
> > Thanks,
> > Wes
> >
> > "aarcuda69062" > wrote in message
> > ...
> > > In article >,
> > > (Faulguys) wrote:
> > >
> > > > Alright - here's an update. We checked the resistance to the ECM
from
> > the
> > > > speed sensor, TPS, AIS, and fuel injector cap. The only thing with
a
> > > > noticeable resistance was the ground from the fuel injector cap,
which
> > read
> > > > between 9 and 10 ohms. I was able to keep the car idling using
> starting
> > > > fluid.
> > > > While it was idling, the hot wire going to the fuel injector cap
was
> > reading
> > > > a
> > > > steady 14V.
> > > > From this info, I have a few questions.
> > > > 1. I assume I should replace the ground wire from the fuel injector
> > cap - 9
> > > > ohms is way too high.
> > >
> > > There is no ground from the fuel injector.
> > > One terminal of the injector is fed constant12 volts (14ish with
> > > engine running), the other terminal is pulled to ground thru the
> > > ECM.
> > > 9 ohms is meaningless, a voltage drop would be a more meaningful
> > > measurement. Tough to do without an oscilloscope though...
> > >
> > > > 2. Is the 14V for the injector cap within reason?
> > >
> > > 14 volts is nominal when the engine is running and the alternator
> > > is functioning correctly.
> > >
> > > > 3. Is there anything else it could be besides the fuel pressure or
> the
> > > > injector itself? I'm checking to see if I can get my hands on a
fuel
> > > > pressure
> > > > guage tonight.
> > >
> > > You haven't checked fuel pressure and volume yet?
> >
> >
>
>

The car starts, but immediately dies if I don't keep pumping the gas. I
noticed something else last night. The engine seems to bog down for a
fraction of a second when the gas is first injected. If I remember
correctly, it didn't accelerate until the gas was no longer being injected.
Then it dies if I don't pump the gas again. No dark smoke like it's too
rich.
Thanks
Wes

"maxpower" > wrote in message
...
> ok first of all you only have 3 seconds of spark and fuel, if the engine
> does not start within that time frame it shuts both off untill restarted
> again,second, if you push on the gas pedal while cranking the engine, this
> could cut the fuel off if you pump it., it sounds as if you have fuel
> pressure and the regulator is doing its job properly.If you see fuel
> spraying as you crank it and it does not start you have some other
problem,
> if you have spark and fuel, you need to check the timing belt for proper
> settings, If you e mail me back i wont get your message for awhile, i just
> read the ones you sent me a few days ago, post here and i will try to help
> you out, o yes, if you keep trying to start the engine, the injectors
spray
> fuel in the cylinders, this could also cause a flooded condition and make
> the engine a no start
> "Wes Faul" > wrote in message
> ...
> > Is there a way to test the fuel pressure regulator? When I tested the
> fuel
> > pressure, I pinched off the return line, and the pressure (on the
intake)
> > did increase.
> > Wes
> >
> > "Wes Faul" > wrote in message
> > ...
> > > Alright - I took a look at it again last night. Fuel Pressure was
> reading
> > a
> > > steady ~14 PSI which should be fine (14.5 is what the manual said). I
> > > looked down the throttle body while my brother cranked it over last
> night
> > > and I think I found the problem. Fuel is injected when it's cranking
> and
> > > when you first step on the gas pedal. It does NOT continue to inject
> when
> > > it idles or while you hold the gas down. I don't have an
oscilloscope,
> > but
> > > my multimeter showed a constant 14V at the fuel injector, so it should
> be
> > > injecting fuel. I called the local dodge dealer, and the technician
> said
> > it
> > > sounded like the fuel pressure regulator. I guess I'll replace that
> > tonight
> > > and see if that fixes it.
> > > Any other suggestions on what it could be?
> > > Thanks,
> > > Wes
> > >
> > > "aarcuda69062" > wrote in message
> > > ...
> > > > In article >,
> > > > (Faulguys) wrote:
> > > >
> > > > > Alright - here's an update. We checked the resistance to the ECM
> from
> > > the
> > > > > speed sensor, TPS, AIS, and fuel injector cap. The only thing
with
> a
> > > > > noticeable resistance was the ground from the fuel injector cap,
> which
> > > read
> > > > > between 9 and 10 ohms. I was able to keep the car idling using
> > starting
> > > > > fluid.
> > > > > While it was idling, the hot wire going to the fuel injector cap
> was
> > > reading
> > > > > a
> > > > > steady 14V.
> > > > > From this info, I have a few questions.
> > > > > 1. I assume I should replace the ground wire from the fuel
injector
> > > cap - 9
> > > > > ohms is way too high.
> > > >
> > > > There is no ground from the fuel injector.
> > > > One terminal of the injector is fed constant12 volts (14ish with
> > > > engine running), the other terminal is pulled to ground thru the
> > > > ECM.
> > > > 9 ohms is meaningless, a voltage drop would be a more meaningful
> > > > measurement. Tough to do without an oscilloscope though...
> > > >
> > > > > 2. Is the 14V for the injector cap within reason?
> > > >
> > > > 14 volts is nominal when the engine is running and the alternator
> > > > is functioning correctly.
> > > >
> > > > > 3. Is there anything else it could be besides the fuel pressure
or
> > the
> > > > > injector itself? I'm checking to see if I can get my hands on a
> fuel
> > > > > pressure
> > > > > guage tonight.
> > > >
> > > > You haven't checked fuel pressure and volume yet?
> > >
> > >
> >
> >
>
>