Ok so ive been dealing with misfires and EPC lights since i installed my KO4 kit. The EPC light is most common when using the cruise control.

But here is the feed back igot from both GIAC and AWE....

Hi Kyle,

Have you pressure tested the intake system and checked the suction on
your diverter valves? You are probably getting the Torque control
limit
exceeded code which happens when there is a mismatch in MAF readings.

Best Regards,


The temp sensor could be your problem right there.

If the sensor is bad it is going to tell the car that it is cold even
when at operating temp. It will dump fuel unnecessarily like it would
if
it was cold....

Hence, misfires.

We had this problem years ago on the S4's. The sensors would fail early
so they did an mass update.

I would also try running the stock airbox.

--Which one do you think is more likely to be the cause of my problems??? I do have a failing Temp Sensor that takes the car a while to get to optimum temp.

 

I would say that they could both be right but the second one sounds more confident in what he is talking about.

Adam

 

I would try the 2nd one as its the easiest of the 2, if that is the case then you are golden besides the stock air box is perfect for the application its used for CAI are nice but the stock one works just as well

 

yep that coolant temp sensor has a lot to answer for but in many cases its down to poor maintenance of the cooling system and the thermostat

 

I started getting the EPC light/throtle cut/Torque control limit exceeded code when I put in my MBC (also happens more frequently while cc is on for me.)
What cylinders do you have misfires in?