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Author Topic: epc light flickering  (Read 1069 times)
Jacub
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« on: August 31, 2025, 10:15:18 AM »

hey guys, i wanted to add something to my tune (kfzw/2 and another map) but when i flashed it onto the car (A3 8L QUATTRO) the epc light came on and started flickering on ign on and the throttle body kept clicking like its trying to cycle but just stoping mid way like (tik tik tik tik tik tik) if i press the gas pedal it opens more but suddenly looses power and repeats fast, ive checked the fuses and disconected and reconected the throttle body plug, still flashing. car would start but rpm is going up and down and stalls after some time if i dont give it gas.
i cant open (engine) in vcds and i tried to reflash my old tune but my mpps isnt reading the ecu, ive tried to put the ecu into boot mode, but iam not able to flash it since it still cant read the ecu.
ANY HELP WOULD BE APRECIATED
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OberlandRacing
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« Reply #1 on: September 02, 2025, 02:44:42 AM »

Seems like u bricked the ECU. Put the ECU on Bench and on MPPS u need to select the Model "generic" and than depends on the ECU if 512kb or 1MB. Than u should be able to read/write it via Boot.
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RS4 B5 TTH550
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