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My new formula is having some teething issues after sitting for a few years. It had a short in the steering coloum that i repaired. It starts up and ran good for a few minuets, did a good burnout checking for a funcional posi. it is ;D I then shut the car off and let it sit for about 15 minuets, and tried to restart the car and nothing. It cranks over fine, has 45 lbs os fuel pressure,has spark, I am a little lost as to what to check next.
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Coming at you live from the birthplace of GM,Flint,Mi. Where your car is worth more than the property it's parked on. -
Re: tpi won't stay running.
Any codes? -
Re: tpi won't stay running.
I would check for injector pulse with a noid light. or a simple test light.Comment
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Re: tpi won't stay running.
those usually run at 33 psi , but 45 isn't too bad - if it was 70 that would be a problem
try cleaning and unsticking the IAC valve , and the throttle plate
then look for vacuum leaksComment
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Re: tpi won't stay running.
maybe the VATS is screwed up? or maybe some of the other power wiring? since you had to work on the column....might be something you missed?
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Re: tpi won't stay running.
vats - it will run for a second , then die
is that whats happening ?
it could have the old broken wires off the switchComment
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Re: tpi won't stay running.
i replaced the wires to the vats at the lock. the security ligh comes off then turns off. How many rpms will the starter turn the engine over? I am only seeing between 100 and zero when trying to crank.Coming at you live from the birthplace of GM,Flint,Mi. Where your car is worth more than the property it's parked on.Comment
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Re: tpi won't stay running.
CAN'T FIX THE WIRES - have to change the whole lock cylinder
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Re: tpi won't stay running.
the resistance value will be off..Originally posted by SpiderGearsManComment
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Re: tpi won't stay running.
what has to be done when I change the lock? i know how to take it apart but how do i reset the vats? or do I have to?Coming at you live from the birthplace of GM,Flint,Mi. Where your car is worth more than the property it's parked on.Comment
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Re: tpi won't stay running.
what year is it ? the newer one has to be relearned , but not the old ones
any repair makes the resistance off
the old ones - you change the cylinder , you start it up
the vats cylinder cannot be recodedComment
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Re: tpi won't stay running.
it's a 1990. I went home from work last night and it fired right up. It ran for about 5 mins then shut off and wouldn't fire up again. cranks over fine,can hear the fuel pump prime,has spark, no codes at all. I tried to start it up with the code reader plugged in and it fired up. It was running like poop and wouldn't run without keeping the pedal floored. HELP!Coming at you live from the birthplace of GM,Flint,Mi. Where your car is worth more than the property it's parked on.Comment
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Re: tpi won't stay running.
vacuum leak again ?Comment
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Re: tpi won't stay running.
if it was a vacum leak why would it run fine when it is cold? It wouldn't start at all with out the code reader plugged in though.Coming at you live from the birthplace of GM,Flint,Mi. Where your car is worth more than the property it's parked on.Comment
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Re: tpi won't stay running.
sounds to me like you may have lost either your MAP sensor, or your Coolant Temp or Intake Air temp sensors.
Does you scanner show realtime info? it should show around 95-100kpa when key on, engine off. Temp sensors should both show "realistic" temps.
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