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View Full Version : VW Polo 9N 1.4 16V Marelli 4LV EGR



kisvilli
15th August, 2022, 08:30 AM
Hi All!

Arrived in my garage a VW Polo with EGR issues.
I cleaned EGR+Pipe+C. Head EGR channel+Throttle Body, not solved.
I Relpaced all seals in intake system+PCV valve, Replace EVAP valve. Same result...EGR
I Replaced a new one AM EGR valve, then new MAP Sensor but some result... I bought a used one OEM Pierburg EGR valve, but result is bad. Everytime "P0402 excessive Flow"
If I blocked EGR channel DTC was changed to "P0401 insufficient Flow".
Everytime I tried set Readiness with VCDS without succes.
I dont have enough patiente now!:mad-new:

Somebody can help me EGR off this ecu?
Ecu is: 036906034D

Best Regards!