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P0234 Diagnostic Trouble Code Discussion for September 2008

Turbocharger Engine Overboost

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Trouble Ticket Help Requests for DTC P0234
Help Request Posted
2006 Volkswagen Jetta TDI 1.9L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 3VWST71K36
P0234: turbo super charger overboost condition control limit exceeded. runs poorly first cold start up will die and have to be restarted. Runs better with codes in system will barely move without faults. Checked fuel press for tandem pump was jumping all over replaced with new one still does it. maybe bad injectors? also do not k...
September 30, 2008