2002 Chevy Impala 0400 code

Tiny
JELLS7
  • MEMBER
  • 2002 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 145,000 MILES
I came up with this code on my 02 Impala. I have tightened the gas gap and reset by unplugging battery. How long do I have to wait to make sure the light is really off. And if that doesnt wor qwhat else shouold I try
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Monday, March 23rd, 2009 AT 2:30 PM

1 Reply

Tiny
RACEFAN966
  • EXPERT
First off you can not reset the computer by unplugging the battery on a OBD2 system you need to have it cleared. To do that I would call around and find a parts store that does free scans and scan it and when the scanner is done it will ask if you want to clear and clear it. Now as for hte light comming on it may be hours day's weeks or not at all there is no set time usually however it would be within 5 to 10 miles.
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Monday, March 23rd, 2009 AT 3:08 PM

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