Question about 1993 Chevrolet Caprice
While driving my 93 chevy caprice the injectors will stop firing. I have changed the fuel pump, filter, and strainer none of this helped. If I let her sit she wil start up after a few hours. Help
That can be due to a bad wiring to injectors or problem on coils , fuel pump (amperage), sensors, CCT, ECU/PCM problem.
The way to find out is going to a good garage and scanning the injectors. The machine will draw a waveform diagram that can tell you what the problem is.
See Omitec : Waveforms
Posted on Apr 25, 2009
This is what I need you to do. Run a self diagnostic on it. This is done by jumping the 2 top right holes in the obd port under the dash to the left or directly under the steering wheel. I will go get my book to tell you the codes. this will give us an idea of where to go from here.brb
Posted on Apr 24, 2009
When you say your injectors stop firing, is it after driving normally for a while or is straight away as starting from cold engine.
Can you tell me how did you check the injectors on the car?
Posted on Apr 23, 2009
Altenator,eletrical system,ditributor. Run a diagnostic computer check for codes while your driving it. you can get these little computers at a parts store.
Posted on Apr 23, 2009
Hi. this is a malfunctioning injector that will need to be replaced. The cool down you mentioned that you preform, confirms this issue. the injector receives its commands for the injector module via pulse. If the injector assembly is malfunctioning, it will work for a while but, if the temperature becomes to high, the ecm/pcm will shut down the injector.
Simply, locate the failing injector and replace it. this will fix the issue.Also, make sure the wires connected to the new injector are in good condition as well.
Posted on Apr 22, 2009
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Posted on Jan 02, 2017
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