[beachrog]

I've had a service engine light on in my '97 K1500 since I bought it. I took it to AutoZone and had it scanned and the guy said it's an oxygen sensor code. I said which one and he said it didn't tell him that, just that it was an oxygen sensor. Well, there's like four of those sensors on my truck and I really don't want to spend the money to replace all four.

A guy I know over the weekend told me he had a scanner that would tell us exactly which one is bad. Is this the Tech 2 scanner? Or just a higher end OBD-II scanner? I would think AutoZone would have something fairly robust. Perhaps I'm wrong.

At any rate, input as alway is appreciated. I'm just wondering what the differences are between the scanners and why one can apparently pinpoint and one cannot.