I have a high milage great running 99 s10- 4.3LV6.I've replaced the cam & crank sensores, did a major tuneup.cleared coadseveral times and it still shows 1345 coad and wont pass inspection.I've replaced the pcmwith a matching used one, did'nt help so i put the original one back in.timing is correct. Icannot pass inspection and need to know how to clear this coad permanatly or fix the problem. Istill drivemy truck on a daily basis,any quilifide suggestions would help. if you need more spacifics please contact me thanks.
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