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Title: Me7.5 from AWT - analogue RPM output and check engine output. Post by: ratosluaf on February 26, 2023, 10:20:04 PM Hello, I am in progress of swapping 1.8t (engine code AWT) to another chassis. I need to work around analogue RPM signal to tacho and check engine signal. I found that I can use pin 37 for RPM signal and pin 47 for check engine light but this info is for transverse mounted engines.
My ecu number is 4b0906018dh, and what i get from pinout is i don't even have cable on pin 47, and pin 37 is used to A/C system. I tried to search for info on the web, but found nothing. Maybe someone can help me before I get oscilloscope and check all the pins in ecu? Title: Re: Me7.5 from AWT - analogue RPM output and check engine output. Post by: JeanAwt on February 27, 2023, 11:51:35 AM if it can help you
Title: Re: Me7.5 from AWT - analogue RPM output and check engine output. Post by: JeanAwt on February 27, 2023, 11:52:47 AM ...
Title: Re: Me7.5 from AWT - analogue RPM output and check engine output. Post by: ratosluaf on February 27, 2023, 10:15:46 PM Thanks. According to that, analog RPM output is still there on pin 37. I also found in 2000 Audi A4 wiring diagram that 47 should be check engine light and 48 epc light. Will try and check. Thanks!
Title: Re: Me7.5 from AWT - analogue RPM output and check engine output. Post by: ratosluaf on March 21, 2023, 03:42:53 AM Yup, rpm on pin 37, check engine on pin 47 - ecu grounds it when mil is on. Everything works fine.
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