i dont know if anyone else has run into this situation, but when i have my heater on hi, blower on high, and my engine temp reaches normal operating range, my epc light comes on. any known causes or ideas on what the hecks goin on? Im not at all familiar with this yet and would like a more educated opinion before i take it in. Thanks!

 

i couldn't even guess...


codes?

 

no codes showed up when i hooked up a scanner. would it even throw any codes though? when the light comes up, i can shut it down, restart the motor and the light is off. It wont come on again until the engine cools completely and reheats. I have absolutely no idea what it could be, because it takes so many things to be going on at once (heater, blower, engine warm up, etc) for it to happen, and wont happen otherwise. If i have the heater on 85, it wont happen, blower turned down..wont happen, i dont know if something somewhere is overheating and throwing the light or what...

 

^does it feel like you lose power when this light goes on?... sometimes my car jolts hard, epc comes on, no power, turn it off and back on and shes good to go

 

Yeah, I peak at around 10 psi and will hold around 7. Shut it down, restart and its good. Cel came on this morning coming to work, runs fine otherwise..

 

Well i do know that AC/heaters are run off the timing belt which is sometimes why its makes the feel of the car alil bit diff. You might feel like you lose power, some people say they feel like that feel more boost. Now on the other hand, id have no clue as to why the EPC light would come on. Ive look all over google for people havin the same problem but i havent gotten a hold of anything.

 

Yeah that's where I'm stumped. Its a chipped 225 if that helps in the search on your end. It hasn't done it sonce this morning and I've driven a good 80 stop and go miles.. Gotta love it!

 

turns out the throttle position module(?) is on its way out. 362 dollar fix.... almost a dp!! i hate that!