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Thanks for choosing Just Answer . I'm Wolfgang here to help!!Below is my first answer or request for more information. If you do not understand it, or you need more information from me, or need me to go in more detail. Do not rate yet, just reply. Put yourself in my shoes, I can not see, smell, hear, feel or touch your car, nor do I know any history on it. So take into consideration I am doing my best based on what you tell me. Also understand fixing cars often requires sophisticated tools, that you may not own. So even if you can not do what is outlined in my answer, that does not mean my answer is wrong deserving to be rated negative.
i do need a vin # ***** the vehicle and also how many miles are on the vehicle please
thanks for the info . if you take the engine cover off and in front you have the intake manifold then you have a flap valve then another flap valve . i need you to look at the wiring of the lower flap valve and inspect if there is any rubbing of chaffing of the wires . is the wiring tight or loose and the connector is snapped on.
was there a recent accident or repair work to the vehicle?
that flap cuts the air and if there is garbage readings it will place the vehicle in limp mode and worse case stall the engine. so tracing of the wiring is needed . what happens if the codes are cleared does it run then and the codes resets right away?
what scan tool are you using please? make and model
TAC ? CAN YOU EXPLAIN?
the tac is a flap to shut the air off to the engine. the only way to check is the wiring from tac to the ecu if all good and no crosses then tac needs to be replaced. sorry mind went blank too early in the morning!!
do you still have then the stalling issue?
i would recommend to get vag com to scan all modules and post full module scan here please so i can have a look see of this myself. the generic scan tool will not help i need to see measured readings while the engine is running to have a game plan what to test .
you will then need to go to the dealer to program the immobilizer to the ecu. all keys need to be resent to do this reprogram