Quote:
Originally Posted by MT-2500
First thing make sure it is a anti theft problem.
Fuel pressure and other things act like that to.
Run a full fuel pressure check on it and post back fuel pressures.
They have to have full fuel pressure to squirt injectors on a cold start.
Does security light come on for a bulb check key on and then go out or stay on after trying to start?
A engine body capable scanner check out is the first step on checking anti theft problems.
There is some bypasses but I always like to find and fix the problem rater than try a bypass that can lead to more problem.
For wiring schematic and trouble shooting/repairing the system a factory repair manual or a All Line All-Data DIY info subscription is your best deal.
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Its not the fuel system. Its the pass code system that is screwey. It kills power to the injectors after the intial crank up.
I just need some one that has the the diagrams of GMs Pass code BMIs to help me.