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Service Engine Light issue

lawted's Avatar
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03-11-04, 10:32 AM   #1  
Service Engine Light issue

1997 Z71 350 engine. My Service Engine Light comes on after starting and sitting at an idle for about 30 seconds. It will also come on when the engine is warm during idle (again it will take about 30 seconds of idle). As soon as I put it in gear and go the light will then go out in all cases. The truck seems to run fine, no noticeable degradation in gas mileage or acceleration. This all started after I had an oil change done on the truck. It is not the gas cap as I have checked that. The air filter has been replaced. Any ideas?

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davo's Avatar

Join Date: Apr 2002
Posts: 2,417

03-11-04, 02:47 PM   #2  
Get us they codes and we will give it a shot.Was anything besides the air filter replaced?Did they put the air filter back on properly and the intake ducts?

Desi501's Avatar

Join Date: Oct 2003
Posts: 2,207

03-11-04, 05:11 PM   #3  
Make sure they plugged in the AIT sensor back in the air ducting.

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