Quote:
Originally Posted by Leane90
Hey guys I got a 07 e90 with a jb4 tune on it . Been running perfectly fine until yesterday . When I try to floor it it puts me in limp mode aka the yellow half engine light starts to appear and I have no real power . But soon as I shut off the car and turn it back on the light goes away ? Anyone know why that could be ? Please help !!!
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OP, get OBD reader or go to indy shop to scan your car's computer for codes and take it from there.