Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
I am sorry your having this problem
it sounds like you just about replaced everything in this car
when it dies will it start back up like nothing is wrong or you have to wait for it to start back up for a while after it dies ?
i am assuming the fuel pressure is good when this happens ?
if so are you 100 % sure those 2 crank sensor wires are good and fixed correctly and in good shape ?
ok at this point with everything you have replaced this issue with NO codes set usually comes down to one of 2 things
the crank sensor itself or the computer
usually replacing the crank sensor and if it still acts up replace the computer will correct this issue from the sounds of it everything else tests good
both these crank sensors and computers are temp related to when they act up
i have seen so many of these doing what yours is with either one being bad with no codes
i would lean more towards the computer with the crazy idle and revving when its acting up as that is the only thing thing to can control enough on the engine to do so and yes a crank sensor is more apt to just not have spark but again i have seen them cause these type of issues
yes a junk yard for a computer of the same year and engine size would plug right into this car BUT make sure you swap the chip from the old PCM to the replacement PCM
the issue with these PCM's where internally the glue on the boards inside the PCM was not a good glue and temp will make the internal connections come and go especially when warmer
not at all
once the computer is out 2 small bolts will need to be removed to remove the cover to access the chip once the cover is off pop out the old computer chip and pop it into the replacement computer it only goes in one way and you can not mess that up at all
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how are you making out ?
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how is the car running ?