Throttle position Sensor E30

[Rated M]

Anyone know the answer?
TPS on the throttle body to the motronic systems seems to become erratic causing misfiring especially when the car is not used for a while. Aparently they get clogged. Is this something that can be rectified with a clean out or must it be replaced?
NED.

[BM AUTOWERKS]

Ned.

Sometimes you can clean and reset, as there is a small amount of adjustment, to compensate for wear. But due to oil coming back through the manifold sometimes you will find replacing it is the best option.

[ANILE8]

For the cost of the TPS units I have always just replaced mine.

[Rated M]

For the cost of the TPS units I have always just replaced mine.

What other Beemers have you owned?

[ANILE8]

What other Beemers have you owned?

None, but for a late model Commodore this spare part is only $92.40.

Shock me with the price for the BMW equivalent.

[BM Tech]

Hi Ned, engine misfire can have several different causes. The TPS on the M20 engine is the most unlikely cause of an engine misfire, especially erratic misfire. I recommend to check the complete ignition system including pick up sensor on cylinder No. 6 lead and fuel injector wiring harness & connections. Regards Carl.