Hey guys, I am trying to figure out this issue. Mods are in my sig, minus the blox engine mount, and the meth kit (not installed) but in first gear at upper RPM ranges I am getting knock via CEL via Tephra mod. From what I hear that is not even suppose to be happening. Also my clutch is going out pretty bad, I am on the stock one for now, and the ACT is to go in soon. Would a dead/dying clutch slipping be causing knock? or am I actually getting knock? TIA

 

meld, log your car and see if the knock is occuring in every gear.