Customer asked me to swap a running motor into his 86 325e due to some sort of prior engine failure. He gave me the car not running and half apart unfortunately. Swapped new engine in and I now have a running issue where the car will idle high and will sputter to the point of no power at WOT with no load. I can pull the temp sensor and it will run all the way up to WOT with no sputter which seems to have the most effect on the running issue. I have checked resistance on the sensor and replaced it with a new one of similar resistance change. I have checked continuity between the wiring and the ICM as well as ECU. I have grounded everything.
I have found multiple threads where people have seemed to have this same issue but the only solution I have found was using a potentiometer in place of the temp sensor to fool it into at least running, but still a little rich.
It may also be helpful to know that when the sensor is plugged in I can clog the intake with my hand and get the car to run somewhat normal.
I have smoke tested and eliminated any leaks.
Any helpful suggestions for the temp sensor issue?
I have found multiple threads where people have seemed to have this same issue but the only solution I have found was using a potentiometer in place of the temp sensor to fool it into at least running, but still a little rich.
It may also be helpful to know that when the sensor is plugged in I can clog the intake with my hand and get the car to run somewhat normal.
I have smoke tested and eliminated any leaks.
Any helpful suggestions for the temp sensor issue?
Comment