Question about 2008 Volkswagen Jetta Wagon

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98 jetta error code p0101

Jetta has error code b0101 the speedometer comes on and off

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Can be loose speedo wiring connectors under instrument panel or its issue with speed sensor on transmission.

I suggest you to go through help links mentioned below with appropriate solutions to confirm the problem :------

How to trouble shoot speedometer?


1996 fiat bravo speedometer not working?

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Speedometer runs backward?


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ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?


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Odometer works properly but speedometer works intermittently?

These will help.

Posted on Nov 28, 2012


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The simplest thing to do is to reset the code and see if it comes back. Any loss of vacuum to the MAP sensor can cause this DTC to set. A number of problems can cause this code, for example, a bad mass air flow sensor, a vacuum leak, a leak in the air duct between the air flow sensor and the engine, a sensor wiring problem, etc. Even a plugged catalytic converter can cause this code. good-day !

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Can you help me decode these code #'s?

Hello mark...according to the manual for Volkswagen Engine and Transmission Codes...

P0101 Mass or volume air flow circuit performance problem

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Dirt and carbon build up will cause this in some cases. You might try removing and cleaning the MAF sensor with an electrical contact cleaner first. You will still need to clear the error codes with VAG-COM and see if they return.

Good luck...i hope this helps.

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