1993 idle is good while warming up, then dies sometimes at go then dies on road for no apparent reason

Asked by Jan 04, 2015 at 11:14 AM about the 1993 Chevrolet Camaro Z28

Question type: Maintenance & Repair

new plugs, wires, cap router, distributer, new battery, fuel filter, all at once so I can not diagnose.

9 Answers

104,205

Which engine you have?

z28 5.7

z28

104,205

Was it doing this before you replaced the parts?

yes

104,205

Sounds like you icm might be acting up. Or maybe coil heating up. Are you sure your water pump isn't leaking on your dist? This can also cause similar issue.

1 out of 1 people think this is helpful.
4,915

My guess would be that the ECM is shutting down the engine because of signals it's getting from a faulty sensor. Perhaps O2? I'm not up to date on all the sensors, but I believe one of them is the problem.

I am not sure about the icm and ecm, is one in the distributer? How much do you think those parts are I have no idea? coil has been replaced also. how do i get the codes without the instrument? Water pump is new.

104,205

Advance auto parts has them for $60-$100. They can test yours. But remember that these tend to only act up when they get hot. They may test good cold but actually be bad at operating temp.

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