Chr

Hey guys, thank you for all your replies. We solved the problem... The identifier pin for that ECU is B135 - Pin 25 Wiring it to ground did the trick. My ECU is now in "manual mode" and all my error codes are gone. All the wiring diagrams and pin-out tables I had so far were from AT cars, so the pin was not even listed. Of course, we stripped the original wiring harness and removed everything we do not need for our beetle. Unfortunately, for the AT wiring harnesses, there is not even a wire connected to that pin, it is just empty. So there was nothing to remove from the harness. We had to add a new wire to that pin and wire it to ground. Additionally, we had to un-wire the neutral switch B135-26, since the ON/OFF state is switched between AT and MT. Otherwise, my engine would start reving up as soon as the ECU gets a speed signal... Best, Chris p.s. The radiator is placed in the front where the spare tire used to be.

Hey guys, first of all I need to confess: I don't really own a complete Subaru (sorry) ... Last year, we swapped a Subaru EJ25 SOHC engine from a 2000 Legacy (156 hp) into our 1973 VW Beetle. We also installed the stock ECU and all the necessary parts from the original wiring harness. Combined with a 5-speed manual gearbox, a lighter flywheel and a custom exhaust system, the car produced 187 whp on the dyno. It is really fun to drive and nobody even remotely expects this kind of power in an old VW Beetle... However, the ECU constantly reports error code 38 "Engine torque control" or "Torque permission signal". When I checked the ECU with OBD2, I found values for "Engine Torque Request", "Torque permission signal" and some more stuff that leads to the conclusion that the ECU is expecting to have a Subaru automatic transmission with the corresponding TCU connected. I bought another ECU that was confirmed to be out of a car with manual transmission, but after installing it, I got exactly the same behavior and the same error codes as before. So there are two options: 1. Someone screwed me over and the new ECU is again out of car with automatic transmission 2. The ECUs are actually the same for AT and MT and the transmission mode is set somewhere else... For the older engines 1996-1999, I found some information about a "AT/MT identification pin" on the wiring harness, which defines whether the ECU should behave like AT or MT. Does anybody know, where to find that pin on my ECU (2000 Legacy, EJ25 SOHC 156hp) or if it even exists? I checked multiple websites for ecu pin-outs or wiring information, including this forum and also this one: https://hackedecu.com/ultimate_subaru_pinout ... but I did not really find anything useful for the 2000 Legacy... best, Chris