The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 2003 S-10 "check engine" light

68C15 · 01-18-2011, 07:01 PM

it sounds like your scan tool, or rather a code reader, is only able to acquire generic codes, not manufacturer specific. gen. are P0xxx while man. spec. are P1xxx, P2xxx etc.

mil on means PCM is requesting the light on.

I understand the data you show, nothing out of the ordinary.

you might end up taking it to a shop. my first move as a pro tech would be to hook up my enhanced scan tool and look at fuel trims and missfire data followed by a test drive.

01-18-2011, 07:01 PM	#10
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: 2003 S-10 "check engine" light it sounds like your scan tool, or rather a code reader, is only able to acquire generic codes, not manufacturer specific. gen. are P0xxx while man. spec. are P1xxx, P2xxx etc. mil on means PCM is requesting the light on. I understand the data you show, nothing out of the ordinary. you might end up taking it to a shop. my first move as a pro tech would be to hook up my enhanced scan tool and look at fuel trims and missfire data followed by a test drive.