Need help quick w/ 2.2 GMC Sonoma !!!
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Need help quick w/ 2.2 GMC Sonoma !!!
I'm trying to figure out my sis-in-law's '03 2.2L GMC it first gave a code for misfire on #4 cylinder and I cleared it and then about a month later it came back and the truck was running rough. So someone changed out the fuel filter and #4 spark plug (yeah I know 1 instead of all 4 plugs) and it's still doing the same thing. So I pulled the #3 and it looks like it's burning oil so I was going to change all the spark plugs and wires. But before I do that I decided to scan it for more codes and came up with "Fuel Injection circuit malfunction" for almost all cylinders and the misfire code on cylinder #4 is still there. What should I check for on the fuel injection circuit malfunction code? Thanks.
Last edited by storm5.3; 05-13-2007 at 12:20 PM.
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Well I think it's all four injectors cause I remember 5 codes now that I think about it...I'll try looking for a harness connector that got knocked loosed or something. I hate working behind someone just for that reason...Thanks for the reply...
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