So we have a cammed 2021 Camaro SS. BTR 225 cam. Car ran great, had an excellent idle. Chopped awesome. Customer brought it back saying it wasn't running right. Looks like the timing is negative at idle now. I scan it and I notice the actual torque numbers spike up to 400 while at idle. Overall it makes the average number in the scanner sit around 150-160. When I read it real time its 0-25 range and then spikes to 400+. Idle is being dragged down and is pulling negative timing. Any ideas what would make the torque numbers spike like that? The tune was spot on before and this wasn't an issue till recently. Maybe a defective TB or something?
Any ideas
IGNASCIO.21SS.FINAL.CRUISE1030.hpl