New to the board. I've been trying to track this part down for nearly 2 years with obviously no success. Originally Siemens AG manufactured this part for Porsche. I've attempted to contact Siemens AG and the particular representative I spoke to (through email) seems to have little to no knowledge of this part and has insistently pawned me off on Porsche who for some apparent reason has no interest in assisting me as a consumer (Unless I'm spending 6 figures). I have a diagram from the PET system and it shows that it is a pulse sender. The part number is - 931 606 021 00. Any help in locating this part would be greatly appreciated and would actually make this car run and drive again. At this point there might even be a reward!!

P.S. Shortly following this repair and reconditioning the car will be put up for sale. As previously stated it is a 1982 Porsche 924 Turbo - 96k miles - no rust - Gambia Red (Which appears to be a maroon) - No price yet.