Question about 2002 Volkswagen Jetta TDI
I am confident your real issue is the wastegate solenoid and the injector circuit has only arisen as a result of the previous... in other words sort the P0245, clear the codes and it is quite likely it will be ok from there on.
What we need to address here is the cause, this can be a dirty air filter which has fouled the hot wire in the mass air flow causing a fluctuation of the grams per second info given to the ECU this in turn will impact on the fuelling causing carbon build up in the cylinder head.
This carbon (Black soot) sticks to the EGR valve, works it's way through the vac tubes linking to the waste gate solenoid etc
Early signs of this issue are fault codes like you have.
Remedy - avoid buying parts at this stage. Run a branded EGR cleaning chemical though the system. Here in the UK we have Wynns or Forte, they are very good. Ensure all the small thin pipes are clean and you can blow through them.
Get Autozone to check the Gsec on the MAFS ensuring it is within range and steady at idle.
Let me know if I can be of any more assistance
Posted on Sep 09, 2010
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Posted on Jan 02, 2017
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