Firebird Wont Start- Anti Theft Issue

[morross]

My 96 Firebird 3.8L wont start. I was driving fine. Stopped for a few minutes to see someone, came back out and dead. Wont turn over although is has power running radio, fans, etc.

A friend of mine bypassed the starter- which is working fine and cranks it fine- it runs for a few seconds and then shuts down instantly. Every time.

We got a resistor at radio shack that matched the same ohms as the computer chip in my key, and connected it between the two white wires at the base of the sterring column, but nothing changed. We may have run the resistor backwards, if that matters, we'll have to check. Also at radio shack the tested an old key I had before I had the ignition changed years ago. The old key chip read ohms and the other one read none.

A locksmith ran them both and they both read a 6. The ohms for it are 1.470K Ohms. The radio shack guy sold me a pack that reads 470-Ohm 1/ Watt. He said that was the same.

Anyway, we are beside ourselves. The engine is fine. The power is fine. It is simply a computer issue somehow related i'm sure to the anti theft which allows us to bypass and crank, but then tells the engine to shut off.

Any ideas??
Or perhaps everything we've done is the wrong approach.

[Morley]

Originally Posted by morross

We got a resistor at radio shack that matched the same ohms as the computer chip in my key, and connected it between the two white wires at the base of the sterring column, but nothing changed. We may have run the resistor backwards, if that matters,

Resistors can't be "backwards", no such thing with them.
If you bypassed the VATS starter relay and the car cranks ans runs then shuts down it isn't VATS. VATS only disables the starter, once you bypass that VATS is no longer an issue. You seem to have other problems. Check all of the wiring down by the starter, you may have a fuseable link down there blown. Other than that, go back and double check everything you did for the opti change, something may have gotten messed up there. If the ECM doesn't see a refrence pulse from the distributor it will shut off the injectors.