Won’t restart
Drifting
Joined: Aug 2019
Posts: 1,334
Likes: 225
When you turn the key to the ON position, you should hear the fuel pump run for about 2 seconds to pressurize the system. I would check that first,
If it does run for the 2 seconds, then you need to check fuel pressure,,,,should be 9-12 psi.
If it does run for the 2 seconds, then you need to check fuel pressure,,,,should be 9-12 psi.
Racer
Joined: Dec 2002
Posts: 405
Likes: 46
From: Manahawkin NJ
I had the same thing happen to mine. The fuel pump was good but would not run. I took it to a shop and they said the MAP sensor was bad and replaced it. I will try to find the work order to verify it, but I believe that is what I was told.
Race Director
Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
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MAP sensor doesn't make sense. If the MAP is out, should throw a code and run like ****. But run none the less untill it fouls the plugs.
Race Director
Joined: Nov 2006
Posts: 13,151
Likes: 7,765
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
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Just how in the H are you "Priming fuel injectors". Are you spraying fuel down the Throttle body???
if the ECU isn't getting a tach read at cranking speeds it wont trigger the injectors.
if the ECU isn't getting a tach read at cranking speeds it wont trigger the injectors.
Dr. Detroit
Joined: Mar 2012
Posts: 10,095
Likes: 4,022
From: New Braunfels Texas
Either low fuel pressure or bad pickup coil in the distributor. Check fuel pressure first.....you need about 10-13 psi for it to function properly. If pressure is good, replace the distributor as the pickup coil replacement is a bit of a job that requires a strong skill set. The pickup coil fires the injectors and is a common failure point of GM CFI/TBI.
Also, a severely stretched timing chain can cause this as well........the injectors have to be in time with the engine, that is how it works.
Jebby
Also, a severely stretched timing chain can cause this as well........the injectors have to be in time with the engine, that is how it works.
Jebby
Racer
Joined: Dec 2002
Posts: 405
Likes: 46
From: Manahawkin NJ
I just checked the work order on mine. I agree it doesn’t make sense, but the work order had them checking the MAP circuit and replacing the MAP sensor. My fuel pump would not work with the key on and they told me the problem with the MAP sensor was causing this. Whatever it was, they replaced the sensor and it ran and I was happy!
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Race Director
Joined: Nov 2006
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From: Sunshine Coast, Queensland, Australia
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Yes, but in this case, the car continues to run once it's started.