2003 350z 49k miles but was hit in the front at one time...

the car goes into limp mode after driving check engine light and TCS and SLIP lights come on but if car sit can be reset and driven again til samething happens ...

replaced ecu
throttle body
pedal sensor

codes are
po507-speed control

po550-steering pressure sensor circuit

p1229-sensor power circuit
p2122- accel pedal pos sensor 1 circuit
p2138- accel pedal pos sensor


any ideas ? bad ground or bad wire is all i can think

 

Crank or cam position sensor.

 

I dealt with this problem but my car was never hit... The culprit was a bad connection at the wiring harness in the passenger footwell... I used dielectric grease and tiny strips of aluminum foil to make sure the pins were making a connection and haven't had a problem since

 

can you be more specific?
i am trying to avoid going to the dealer's. they r known to rip people off!
thank you.

 

I would start with MAF sensor cleaner on all connections... Throttle body, gas pedal and ecu and if the problem continues try to look for bent pins at each connection point... I pinpointed my problem pins from the codes that the car was throwing and was able to beef up each by adding slivers of aluminum foil to those specific pins...

 

Idk what your problem is but I'm currently dealing w the exact same problem!! Let me know if you figure it out and I'll dk the same!

 

Just got mine back today. Pulled a p2135 (Throttle Position Sensor) with an OBDII reader. Got the throttle body replaced and she is running better than she was before. Cost me $484.