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I am working on a a chevy cavalier with no start but cranks, has a good compression, has spark, but no injector pulse, fuel pump/injector fuse
is good, but it has a " theft deterent code (pass lock)". It will run when "ether (starting fluid)" is sprayed to the throttle intake. PCM shutsdown fuel pump/injector when theft deterent is active.
Replaced cluster and ignition switch and went through re-learn procedure and theft lamp supposed to flash during KOEO during the re-learn process and repeat the process 3 times. however theft lamp only flashed once on the first cycle and it stayed on the whole time. and to no avail vehicle still not starting.
Anybody was able to bypass this type of system before?
Which pats system is this in the 91 you can bypass it fairly easy ScannerDanner has a video here yours may differ slightly on a 91. I'm not at the shop to get a diagram but I'm sure someone else here can post it.
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