Audi 4F 4.2 MPI problem with APS G79 signal to low

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Topic: Audi 4F 4.2 MPI problem with APS G79 signal to low (Read 3442 times)

BlackT

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	Audi 4F 4.2 MPI problem with APS G79 signal to low « on: March 08, 2022, 12:04:10 PM »

short long story, I need to get some CAN_BUS data from 4.2 M7.1.1 ECU so I connect it to my car (2.7ARE)
I connected 4.2 ECU to accelerator pedal, grounds and signal pins 3,4,5,6. But 4.2 ECU does not regonized pedal. So i discconcted pedal form 2.7 and only connect it to 4.2. Now 4.2 ECU see G185, but not G79 I get this error:
18038 - Accelerator Position Sensor (G79): Signal too Low
P1630 - 35-00

Pedal is okay, wires are good. I use this shematic from attachment

Is this ECU fired or I miss something?

4F0907559


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BlackT

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	Re: Audi 4F 4.2 MPI problem with APS G79 signal to low « Reply #1 on: March 09, 2022, 12:42:16 AM »

I still have no clue what is happening here Huh

How this could make problem or burn something in ECU?

I see on PCB there is a 10 k resistor in ECU between MCU and pedal signal, that is enough protection to ADC in MCU Huh

Pedals should be same on every ME7 or am I wrong?


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