KPA Sensor Soldering: Repair & Replacement

Hey everyone, I have a question for you. Can anyone tell me which pins on the engine control unit (ECU) correspond to ground, power supply, and output signal? I can't seem to find any markings or numbers. There has to be a way to figure this out. I want to connect a 4-pin sensor outside of the ECU. I've figured out the pinout for the sensor: Pin 1 is ground, Pin 2 is temperature, Pin 3 is power supply, and Pin 4 is the output signal. Now I just need to connect them to the correct pins on the ECU. I hope someone can help me with this. The ECU is from a 1997 Golf 3 Kombi with the MKB AFN engine.

Hello,

Sorry, you probably don't want to hear this, but that's a real pain.

The AFN comes standard with a 250kPa sensor. Why would anyone need to install something external? What benefit would it provide? I honestly can't think of a reason.

And if you were to somehow want to run more than approximately 1.4 bar of boost pressure with your ALE system, which would be completely ridiculous for this engine, then the engine control unit would have to be reprogrammed for the other sensor anyway.
"Who would even bother creating a dataset for you if that person can't even figure out how to turn a multimeter to continuity mode and determine ground?"

ECU replacement from a baker, a vegetable vendor, or an EBucht power seller, or what?

I honestly don't know how to respond to questions like that, because it's comparable to this: "I want to put tractor wheels on my Polo, but I haven't figured out where the screws should go on my wheel hubs. Can anyone tell me how to attach the wheels?"

Best regards, Rainer.