service engine light reset

[eracerX]

anyone know how to reset the "service engine light" on 1999 Z71? it came on when i took off fast from a stop. seems to be runnin fine, no rough idle, shifting probs or nothing. just lookin to reset it and see if it comes on again.

[YtseJam454]

The light does not need to be reset. If the SES light came on, there is a problem with an emissions related failure. On all 96 and newer model OBDII vehicles, the emissions systems, tailpipe & evaporative are monitored byt the PCM (computer). Typically if the failure was eroneous, after 40 or so monitor cycles the light will go out and the DTC (Diagnostic Trouble Code) will be set in history. The most inexpensive way you can get away with trying to see if it was an eroneous problem is to go to somewhere like AutoZone. Have them use a scan tool to retrieve the stored DTC's. Don't just let them clear them. Write down the DTC# (Example P0300) then let them clear it. If you tell us the DTC failure we may be able to help you fix your problem. Most of the people that work at such places will pull codes and try to sell you a part. Sometimes you get lucky, most times you're throwing money out the window. Hope my post makes sense and helps.

[eracerX]

ok i went to autozone today and had them check the code, said had a misfire on cylinder 4. a mechanic friend of mine said it could have been a piece of carbon or dirty fuel injector and has me running a can of injector cleaner through now. they erased the code for me and so for has not come back on. guess i will see if it comes back on or not. thx

[YtseJam454]

When was the last time you tuned it up?

[flht]

No AUTO Zone here and the light is on now (really pisses me off) I know what caused it and have fixed the problem for now (auto start not connected to tac. Shows bad and light comes on. On the 97 the reader reset is 150 dollars any help here

[YtseJam454]

Originally Posted by flht

No AUTO Zone here and the light is on now (really pisses me off) I know what caused it and have fixed the problem for now (auto start not connected to tac. Shows bad and light comes on. On the 97 the reader reset is 150 dollars any help here

That will not cause your SES light to come on. The only thing that can trip that light is an emissions failure. That's federal laws for OBDII certified emissions. Something like an aftermarket remote starter won't cause that.

[eracerX]

i just bought the truck about 6 months ago and have not tuned it up yet. have had no probs with performance or anything until this light came on.