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Check engine light

Tiny
DPGRAVES
  • MEMBER
  • MERCURY MARQUIS
2004 Mercury Grand Marquis - had to disconnect the air intake system plug to change the air suspension compressor. Forgot to reconnect the air intake connector. The check engine light is on. Reconnected the plug on the intake, but the check engine light stays on. How do I reset the check engine light?

Thanks,

Dan
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Thursday, July 19th, 2007 AT 5:36 PM

1 Reply

Tiny
GNORTON52
  • MEMBER
  • 3 POSTS
That is relatively a simple fix. Find someone that has an OBDII code reader and ask them to plug it into your computer. Then scan the system and then hit "clear". This will clear the code and reset the light. OR you can try disconnecting the battery and leave it disconnected for approx. Three minutes. That too will sometimes reset the code.
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Thursday, November 1st, 2007 AT 2:02 PM

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