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hello.
My car is VW Golf plus 1.4 tsi 140hp 2007
I have an issue with intake manifold. Diagnose shows p2004 error code but there is no check engine light on. I had removed intake manifold for cleaning.everything is okay on that. I have replaced EGR solenoid valve, Throttle body upstream of turbo. then we did adaptation which failed.it can not be adapted and shows p2004 again.wires are ok to sensors and valves 5volts.what can by reason?

Vehicle: Volkswagen golf plus1.4tsi 2007 140hp

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