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Showing results for tags 'p0603'.
Hi group - I could use a point in the right direction in isolating check engine light and trouble codes. I have zero history on the car but here's the situation. Engine was not idling well and it was running a little sluggish. I replaced plugs and wires (AC Delco) and put in a new battery. Started the car and no check engine light but after letting it come to temp, check engine came on. I took it for a drive and at first it was a little sluggish but once I drove it on the interstate it began running much better and idled fine. I'm thinking the initial sluggishness may have been due to it not being driven in 4 months and moisture i fuel line. Anyway, took it to Autozone to pull codes which showed P0603, P0141 and P0300. Before I pull the coil packs to do the ohm testing and before I look at O2 sensor, I thought I'd see what you guys think. All input and help is much appreciated! Thanks, cal