i have p0325 p0300 p0171

Question

P0325 Nissan - I have p0325 p0300 p0171 on and the rpm at idle jumps up and down shaking the car any insight would be appreciate.

Answer 1

P0325 Knock sensor 1 circuit malfunction

P0171 Fuel trim lean Bank 1

P0300 Random misfire

Lean condition which is unmeter air such as vacuum leaks will cause a unstabled RPM which reuslts in random misfire and possible set the knock sensor code (which is always present) Look for the vauum leaks this can and may be the cause of random misfire and the knock sensor coding up.