Car stalling..
Thread Starter
Intermediate
Joined: Jan 2019
Posts: 41
Likes: 0
Car stalling..
1988 corvette auto...102.000...
My car was stalling once in a while until the would reset the comp by talking the pos off batt...then it would start....enine light came on code mass air flow sensor...i put new one on also a fuel line sensor...also a new icm sensor...
Took car for oil change and they put the icm in it..car started for a few seconds..they told me i have no fuel pressure fuel pump was not coming on...i brought car home and put new fuel pump in it today..started car it ran about 2 minutes and stalled out..it now wont start...i sprayed starting fuel in it it started a few seconds...can anyone please tell me where i should go next here....
My car was stalling once in a while until the would reset the comp by talking the pos off batt...then it would start....enine light came on code mass air flow sensor...i put new one on also a fuel line sensor...also a new icm sensor...
Took car for oil change and they put the icm in it..car started for a few seconds..they told me i have no fuel pressure fuel pump was not coming on...i brought car home and put new fuel pump in it today..started car it ran about 2 minutes and stalled out..it now wont start...i sprayed starting fuel in it it started a few seconds...can anyone please tell me where i should go next here....
Racer
Joined: Feb 2015
Posts: 265
Likes: 19
From: Tampa FL
You need to get a cheap fuel gauge and attach it to the port on the intake to see if you have fuel pressure with the key on. Should be between 38-40 psi with ign key on car not running. If there’s no pressure and it’s a new pump, you need to find out why it’s not turning the pump on. It’s often bad connections at the fuel pump.
Thread Starter
Intermediate
Joined: Jan 2019
Posts: 41
Likes: 0
Reply
I put a new fuel pump in it..the car started and i let it run 5 minutes...next day i started it right up but i noticed the service light was on.i let it run acouple mins....went out the next day started it up let it run about 2 minutes then it died..i took off the positive batt post then hooked it back up the car started and ran about a minute then it died..i tried the batt thing again didnt work..now it wont start:
I have replaced fuel pump
ICM
Mass air flow sensor
Fuel sensor relay
Thoughts anyone ?
I have replaced fuel pump
ICM
Mass air flow sensor
Fuel sensor relay
Thoughts anyone ?
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Michael S. Palmer
Team Owner
Joined: Jul 2004
Posts: 28,497
Likes: 3,298
From: Hartford WI
Refresh my memory. What is the fuel sensor relay?
Also, have you tried this. Take the MAF out of the picture without touching the battery. Start it and see if it runs with the MAF disconnected.
Also, have you tried this. Take the MAF out of the picture without touching the battery. Start it and see if it runs with the MAF disconnected.
Team Owner
Joined: Jul 2004
Posts: 28,497
Likes: 3,298
From: Hartford WI
When it doesn't start, what is the fuel situation like? When you first turn the key on, will it pressurize and to what? Will it hold pressure for a while? When it does this, is there a blue flame on the plugs (do this with a known good plug)? AFAIK, if the MAF is disconnected, it will default to whatever program it came with. Also, get a scanner and see what the Coolant Temp is and NOT what the gauge says (which might be correct but we don't care).