Maybe check out your TPS before giving up on it. See the Dr D jet site for good information.
https://oldtimer.tips/index.php/en/d-jetronic/58-throttleswitch
But it seems you are having problems getting an ok idle -and the TPS doesn't have much work to do at that point.
At idle -no throttle- wire 17 from the ECU should be connected to ground through the TPS. And that circuit should open once the throttle is depressed. If that doesn't check out, test the function of the TPS by itself. Also look at information on rotating the TPS for the idle adjustment.
Maybe check out your TPS before giving up on it. See the Dr D jet site for good information.
https://oldtimer.tips/index.php/en/d-jetronic/58-throttleswitch
But it seems you are having problems getting an ok idle -and the TPS doesn't have much work to do at that point.
At idle -no throttle- wire 17 from the ECU should be connected to ground through the TPS. And that circuit should open once the throttle is depressed. If that doesn't check out, test the function of the TPS by itself. Also look at information on rotating the TPS for the idle adjustment.
Thanks a lot for attaching the Dr D-Jet.
The engine doesn't start this morning...