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Old December 20th 04, 01:40 AM
Lawrence Glickman
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On Mon, 20 Dec 2004 01:28:04 GMT, Steve B. > wrote:

>On Mon, 20 Dec 2004 01:07:12 GMT, JFM >
>wrote:
>
>>I assume that all of these things, and the fuel pump, would prevent
>>the starter from working at all?
>>
>>JFM


I am the first to admit I don't know what is going on with this car.
That said, you need 3 things to make it run
fuel
air
ignition

so my idea was/is, what is your fuel system pressure under Load?
It might be OK at idle, it might not be delivering enough at speed.
Why not? Could be any number of things, including the fuel pump
itself, or a clogged fuel filter.

The other idea I had was an electrical system that is borderline
because of corrosion somewhere. Not a good ground, B+, or whatever
combination thereof, starting with the battery and working out from
there. Intermittent continuity is the idea.

Then again, I don't know this particular car/vehicle. These are all
WAGs ( wild assed guesses ). Me, I would hook up my scanner and drive
it around, checking the numbers for each system until I found
something *funny.* But, OP doesn't -have- a scanner, so? So we're
left with WAGs.

Lg


>The ground strap issue is the only one that could possibly stop the
>starter from working and even that would be a stretch since the neg
>battery cable goes right to the engine. I think he missed the part
>about the starter now working at all and thought it just wouldnt
>start.
>
> Steve B.
>
>
>
>
>>
>>On Sun, 19 Dec 2004 17:46:50 -0600, Lawrence Glickman
> wrote:
>>
>>>You have to look at the vehicle. Or pay someone else to do it for
>>>you.
>>>
>>>1st thing is check the grounding point(s) for the B- of battery.
>>>2nd thing to check is your vacuum hoses for leaks, disconnections.
>>>3rd thing is wiring to your Throttle Positon Sensor, or possibly this
>>>itself is bad.
>>>
>>>I have a *scanner,* and my scanner tells me that at idle, my throttle
>>>position sensor is at 18.4% of full scale. If you don't have a
>>>scanner, your ****ing in the wind, you don't -know- anything about it.
>>>
>>>There is the possibility you have a malfunctioning mass air flow
>>>sensor. At idle, I am taking on 0.52 to 0.63 pounds of air per minute
>>>for a 14.7:1 air to fuel ratio.
>>>
>>>I could go on, but you get the idea. You need some diagnostic tools
>>>if you want to fix this by yourself.
>>>
>>>If you are a hobbyist like I am, buy a scanner ( not just a code
>>>reader ) and DIY. Or, bring it to a shop/dealer and pay, pay, and pay
>>>some more. In the end, you will have paid enough to probably buy your
>>>own scanner and then some.
>>>
>>>Lg


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