Drove to work this morning, with no issues. Get out 10 hours later and start the car, as soon as its on throws the service engine soon light, cut the car off to do a visual inspection on the engine bay, nothing looked outta place, started car back up and drove it home, car runs fine, makes power and doesnt act different than normal. Could I just need to clean off my o2, or maf sensor? 03 evo 8 with intake, tbe w/no cat, hks 272's, walbro 255. Any advice appreciated, hopefully my motors fine.

 

Check the code, my guess is something related to the rear o2 sensor. Are you tuned? How did your tuner disable/fool the ECU for the rear o2?

 

Not tuned yet. No idea how the previous owner got away with no code. Gonna try and get under the car tom and check the o2, I have no equip to pull the code and don't wanna blow $100 at the dealer

 

Autozone, O'Reilly, etc. all pull codes for free.

 

where is the outlet on my car to pull the code from?

 

right of steering wheel under panel, take a flashlight and take a look you'll see it

 

thanks for the help guys, I'll get this figured out tom hopefully.