computer
Thread Starter
1st Gear
Joined: Dec 2008
Posts: 1
Likes: 0
From: san antonio texas
computer
i have an 1988 ca vette and its have whati think is a computer problem , what it is doin is it will just died for no aparnt reason and i cant figer out why,it dose havea performance chip in her so i think that that is hurting it, can some oone help me????
Corvette Enthusiast
Joined: Oct 2007
Posts: 6,795
Likes: 2,709
From: So. Cal.
2025 C7 of the Year Finalist- Unmodified
2024 C7 of the Year Finalist - Unmodified
2023 C7 of the Year Finalist - Unmodified
vette
If you are having computer problems, they generally throw codes. Any codes?
Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
I have heard of failures, but in my experience the stock ecm can handle quite a bit of abuse. You could inspect the prom to make sure is being held in by the 2 clips. I would also start looking for the problems elsewhere, such as dist. module etc.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
FIRST check with ALL injected engines is FUEL PRESSURE... should hear the pump run for 2 seconds when the ign switch is first turned to "on" but not to "start" (may need to remove gas cap and put your ear near the hole while a helper turns the key if in a noisey area)... if you hear the pump hum, get a $15 tester from harbor fright...pressure should be near 40 psi,still hold 10 psi after 12 hour sit (don't need to run engine to do this test)
second check for spark...do NOT pull a wire off the top of the distrib (old school method) as the HEI may build enough "juice" trying to fire too much gap that it arcs internally and self-destructs, unplug a plug wire from any spark plug and use a well grounded spare spark plug to test...if no spark, the "ignition module" inside the distrib is a very common culprit (i carry a spare + tools in all my HEI cars)
