The car continues to run after switching off for a short period

Tiny
GARFIELD89
  • MEMBER
  • 1997 VOLKSWAGEN POLO
  • 1.4L
  • 4 CYL
  • FWD
  • MANUAL
After switching off my vw polo r reg, it continues to run for a short period, what could this be? Many thanks Mitch.
Wednesday, March 19th, 2014 AT 12:47 PM

3 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,874 POSTS
I ran into this once where someone hot-wired the radiator fan to run all the time rather than fix the problem the right way. When the ignition switch was turned off, the spinning fan motor acted as a generator and supplied the current needed by the Engine Computer for about three or four seconds.
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Wednesday, March 19th, 2014 AT 3:26 PM
Tiny
GARFIELD89
  • MEMBER
  • 2 POSTS
Thank you for replying, any suggestions on how to fix this problem. Kind regards Mitch.
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Wednesday, March 19th, 2014 AT 5:28 PM
Tiny
CARADIODOC
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What I referred to would have been a modification someone did if the radiator fan wasn't turning on when it was supposed to. The clue would be the fan runs now anytime the ignition switch is turned on. If that's the case, you'll have to find where they spliced the fan circuit to a hot circuit and undo that.
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Thursday, March 20th, 2014 AT 5:49 PM

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