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I have been searching for threads on this and everything that I find talks about using a wideband. Can this be done without a wideband and if so which PIDS do I need to be using?

No they are all stock. It seems really odd to me that there is no code. I wonder if there is anyway to test the FICM?

No codes are set when this happens.

Does limp mode reduce pulse width's? If not are there any EFI-Live tables that would?

My LLY truck has been defueling randomly for a few months and haven't really had the time to check it til the other day. It usually occurs after having driven for a few minutes or even immediately...

I hadnt thought of doing a read, I will give that a try.

Yes I did.

Seems like it is in some type of protective mode that re-arms the PCM everytime EFI-Live is about to launch the bootloader. It will unlock it after 2 or 3 attempts, then re-arm. Then...

I have tried to unhook the battery a number of times but have had no luck, is there anything else I can do or should I just get a new PCM?

Thanks, I will give that a try.

While doing a reflash on my 2002 Trans Am with an LS3 engine (still using LS1 PCM) the battery died in the car. Which caused the flash to fail which at the time I figured was no good, I just didnt...