Question about 1998 Volkswagen Jetta

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Check engine light

I have had no problems w/ my 98 jetta until today... the check engine light was flashing and the car kept stalling out. It seems to run ok right now, but the light is still on (steadily) and sometimes the engie will idle down like it is going to stall. what could the problem be. I am used to ford problems not volkswagon. please help!


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  • Nydblki825 May 25, 2008

    My check engine light started flashing and the car seems to be ideling like it is going to stall. When you press on the gas, the car seems to have no power.

  • dpj13 Jun 27, 2008

    Basically we have a very similar problem our 98 jetta was fine. Normally the temperaure line was nearly always on, although mechanics indicated it was just faulty. But recently noew the check engine linght comes on and off for hours straight, then the car has died, and when we try to restart it turns over, but doesn't catch. 15 minutes later the car starts, and the check engine light will sometimes be on or sometimes be off.

  • mikecmllr Mar 17, 2009

    i was driving my car like 2 months ago and my check engine light camer on it was flashing and i lsot power in acceleration immediately then i pulled over and turned the car off for like 10 mins and drove it into my mechanic and he said it was a irs ensor but it was reading that i was svere so he told me he reset and it and he said he didnt beleive its a problem so then like 3 weeks later im ont eh hgihway and the check engine light came on this time solid and then i lsot power in acceleration so i turned off the car for like 30 mins and i was able to drive my car to the exit that my house is near and when is topped at the stop sign my car jsut shut off and i tried startin right away and not a sound so i waited like 15 mins and the car statred and i drove it home and its been sittin since anybody have any idea of what is causing this to happen



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One possible cause: many cars use the engine coolant temperature sensor to control idle speed and to shut down a dangerously overheated engine. if this sensor is sending a false signal, the controller will not know that and it will continue to listen to it. your task is to try and see if this signal is true or false. do this by measuring (USING A HAND-HELD MULTIMETER SET TO LOW OHMS RESISTANCE TEST) the resistance change across this sensor identified by a blue/white or yellow/red wire at one connector and a brown/green wire at the other connector. the sensor is located near the thermostat on the hot side of the coolant outlet from engine. if you find no change in ohms or find infinity ohms or always zero ohms, change the sensor and the light may fix itslef over time.

Posted on May 15, 2008


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