Performance test gone wrong in the M5

[@matthewwaldrup149]

Throttle actuators throw random codes. Mine throws misfire codes right before it goes into limp mode. Car sounds rough and shakes. (E90 m3) everytime I get gas for the past 2 weeks it doesn’t wanna start and when it does it’s straight into limp mode with misfires on every cylinder affecting exhaust emissions. And it says close gas cap. So not sure if gas cap is the fix or if I need to replace fuel breather valve, the dmtl pump, charcoal filter or what. But I just ordered a gas cap and pre cat o2 sensor bc that sensor is shot. So once I replace it then it’s going to shop to be smoke tested and have throttle actuators and spark plugs done

[@RollinFatJs]

What year is that?

[@alexchavez1011]

@@RollinFatJs 2008

[@matthewwaldrup149]

Those are throttle actuators not idle actuators. There’s no such thing. Also you who I’ve bought new bc those used ones WILL GO OUT again. Rebuilt ones don’t last long. Or electronic part of the actuator the computer chip goes bad. You’ll be replacing both within a year I PROMISE.

[@matthewwaldrup149]

One of my throttle actuators is on its way out. The weather has a lot to do with it. If it’s hot my car goes into limp mode. But if it’s like below 65 I can beat on it no issues. Now that it’s been in the 80s/90s car starts in limp mode, and went into limp mode 8 times Friday within 30 mins. I parked in the shade for a bit and once it cooled down it was fine again.