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Christopher, VW Technician
Category: VW
Satisfied Customers: 438
Experience:  VW Body Electrical Specialist, Expert Level Technician
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1999 VW JETTA GLS: warms..stalls..wont start..throttle position sensor

Customer Question

My car 1999 VW JETTA GLS iv VR6, AFP Engine. warms up to engine temp about 200 degrees and then stalls or shurts down then it wont start again untill it cools down to about 120 degrees. I got some code P1172,P1542,P1544,&P1545, they all indicate throttle position sensor failure but will this shurt the engine down? Please I will glad to hear from you.
Submitted: 8 years ago.
Category: VW
Expert:  Christopher replied 8 years ago.



Throttle Actuation Potentiometer Sign.2 Signal too Low




Throttle Actuation Potentiometer Range/Performance







Throttle Actuation Potentiometer Signal too High




Throttle Pos.Contr Malfunction



I would suggest you investing in a VAG-COM (can be purchased from )


I would recomend trying to clear the faults and setting the basic setting for the throttle body and see if the faults go away and the basic setting, sets.


Those faults can cause the vehicle to stall out, if the throttle body will not respond the engine will not run very good and stall out.

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