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1999 suburban: smog, emmissions already passed

 

Customer Question

how do i reset the computer on a 1999 suburban to pass smog, emmissions already passed

 

Optional Information:
Year : 1999
Make : Chevrolet
Year (other) : 1999
Make (other) : suburban
Model : 2500

Already Tried:
driving 100 miles

Submitted: 1309 days and 14 hours ago.
Category: Chevy
Value: $15
Status: CLOSED

Accepted Answer

Picture
Expert:  akcarguy replied 1309 days and 9 hours ago.

unhook the battery for five minutes then hook it back up, this resets the computer. before hooking the battey cables back up touch the two together, this causes a manual reset and discharge of the elecrtical system. it si called a hard reset. wait at least five to ten minutes for the capacitors to discharge before doing so, ten minuteds is plenty enough time. if you still have a light on after that, the problem has not been fixed.

Expert TypeChevy Technician
Category: Chevy
Pos. Feedback: 100.0 %
Accepts: 162
Answered: 9/4/2009

Experience: schooled, trained,love the wierd stuff

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