HappySalesman

iTrader: (3)

So some time back I made a couple of posts about some starting issues with my Z. One where when I turn the key absolutely nothing happens for about 10 seconds and then the car starts cranking. Another where the car will crank and start, but immediately die and backfire.

Since I know VATS controls both fuel and starting, I was wondering if it was a possibility that VATS was causing these issues?

And then, on top of that, if the VATS bypass actually bypassed the VATS module or if it just simulated the proper resistor code in the vehicle and everything still ran through the module.

Thanks!

Mercier

iTrader: (15)

From my reading, I do believe VATS could be the culprit. Also the bypass solutions I have seen seem to simulate the key with a resistor. I believe VATS can be turned off altogether with a tune. That being said, have you tried swapping in another BCM?

HappySalesman

iTrader: (3)

No, I (admittedly) don't know much about the VATS system beyond the resistor code and that it controls the starter and fuel.

Time to start reading lol

Edit: I don't suppose if I swap the BCM I'll have to take it to a dealership and have it reprogrammed will I?

Mercier

iTrader: (15)

Hmm. You might need a key with a different resistor value. Not sure if that is set in the BCM or what. Likely. OR just get yourself a tune and get rid of that. And get yourself a BCM too.