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    Thread: 02 Jetta TDI, MIL on: Code P0234

    1. 02-25-2008 12:09 PM #1
      Car is a 2002 Jettta 1.9TDI (not the 1.8T Beetle)
      I have a code P0234 Turbocharger overboost condition. I checked my wastegate bypass valve for supplied voltage and it was good. Then I used jumpers to try and activate the solinod, nothing happened so I replaced the valve. PN 1J0 906 627 A if there is any question as to which valve I am talking about. I reset the MIL and drove the car, once it went through it 0BDII checks it reset the MIL for the same P0234. Where should I go from here? Is there a common problem that sets this code?
      Thanks in advance,

    2. 02-25-2008 03:27 PM #2
      Depending how many miles are on the car it is proabaly a stuck actuator on the turbo. Or the vaines inside the turbo are clogged up.
      How many miles on the car. Have you ever cleaned the intake?

    3. 02-25-2008 03:43 PM #3
      The car has 32,000 miles.
      Never have cleaned the intake or any other part of the system.
      Could it be that valve is working correctly but the vac. lines are clogged?

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