This is a new combo that was just put together its a 376 LSX with twin 66's we just started making some pulls the other night and had zero issues, then last night after the first pull this thing goes nuts in the middle of a run and every sensor goes negative (timing, ect, IAT, hell even the STFT and LTFTs come on and they are shut off) we have beat our head against a wall trying to figure it out.
To add we thought maybe the computer was screwed up, so we threw another in and it did the exact same thing.
Post the tune file too.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
here is the tune
thinking this is a ground or power issue??
you should put ECM control module voltage in your channels list. at least to make sure the ecm is getting at minimum 12 volts at all times. It looks like in the log the pull went from wot to dead. did you let off and kill it or does it die out? also the first thing to go wild in the log is your afr going from 11.1 to 17.11. while your injector pulse width stays constant until tps goes under 80% by then the ghost fuel trims are well into the -20's.
Last edited by Oleblu; 10-12-2016 at 08:11 PM.
here is what the issue was, it was a grounding issue. that thing was killing itself under WOT and the ground on the back of the head had wiggled loose.
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