View Full Version : EPC Light questions

03-30-2008, 02:24 PM
So today something new happened and it scared the shit out of me since it has never happened before. I was pulling away from a light at a moderate pace shifted into second waited a second and gave it a little throttle and then all of a sudden the throttle has no response and car sounds funny and the EPC light came on. I pull over and restart and the problem is gone. I get out the manual and read about the light, sounds like limp mode. After restart the car runs and sounds exactly like it always has, probably 20min later it did this again and I think it was similar conditions. It seems like under part throttle there is a little surging because the car jerks just a little. I don't think it's a misfire since it doesn't feel like a loss of power and the plugs/coils have <5k miles. At WOT and little throttle it's fine but in the middle it seems to act a little funny. I have a 710n dv which I think is good since it seems to hold boost fine when you really get on it. I haven't been able to pull any codes since the shop isn't open till tomorrow. I think it might be the n75 valve but what do you guys think?

03-30-2008, 03:15 PM
I just went out and tried to get this to happen again and no matter what I did it wouldn't happen, I guess this is good. Car felt 100% normal I'd still like to hear what people think.

03-30-2008, 04:14 PM
ill bet you five dollars you have a torque monitor limit exceeded code.

03-30-2008, 04:16 PM
What would that mean and should I be worried? How would it be fixed if it's a problem.

03-30-2008, 05:42 PM
If it is a tq limit code you need to call up Revo and tell them they need to change the tq limiter settings. GIAC ran into this issue way back in 2001 with my custom K03 tuning and it happens with the J31 file. It seems to only happen during very light throttle and at low rpms.

03-30-2008, 05:50 PM
Doesn't it seem strange that it would happen today after I've been chipped for 5 months and I don't think there were any special conditions today? Is this something that can be done with lemmiwinks?