My 94 lumina z34 will quit after a short time, and sometimes not start at all. I have tracked it down to be not getting a cam speed sensor signal. I have changed the sensor, traced the wires back to the engine module, and even changed the engine module. Right now the engine will not get any fuel, the injectors are not working. I have checked the fuel pressure, ect, with no help at all.
With the key on, do you have voltage at fuel injector, use a test light?
Engine cranking do you have spark at the spark plugs? I'm just trying to see if you have more than one problem? I don't know how much testing you have done?
Is there a purple wire with white tracer at ignition module, Engine cranking, there should be a dc pulse on that wire? If not, the computer won't ground the fuel injectors. In my opinion.
Cam sensors reluctor may be bad or adjusted too far away . How is the crank signs like ? Does the tachometer register while spinning engine over?
Crank signal
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SOURCE: 1987 Chevrolet S-10 Pickup1987 chevy s10 2.5l tbi
Check the trottle body postioning sensor...
SOURCE: 1987 chevy S10 engine idle problem
relace the throtle air idle valve.The temp switch will allso cause this problem.
SOURCE: crank no start 94 chev lumina
Hmm, been a while since I played with one of them, but I do recall a simular problem. Try this,,, locate your ECM that you replaced,find the orange wire, and trace it back. I have found breaks in this wire in different places, mostly in the harness running under the rad support. The orange wire is a power wire for the ECM.
SOURCE: Is the oem factory
We dont understand your question.
- If you are asking about if the moonroof work in this and other models, the answer is YES.
- If you are asking about WHERE find this repalecement parts, I suggtes looking in any junk car, the dealer is very expensive.
Good luck.
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injectors not working everything checks ok but injectors don't work
Is the security light flashing?
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