I took my 1989 S10 4.3 for its NY State inspection today and she failed. The Shop said it was burning way too rich. They said it may have a bad cylinder.
Before I went for inspection I changed the oil, air filter, PCV valve, cap and rotor. It seemed to be running so well that I did not do the plugs,spark plug wires or timing (which have not been checked in awhile).
After I take care of the plugs and wires is there anything I can do to make sure she is running well enough to pass the emmissions test. I tremble at the thought of not having her pass a second time or maybe even worse, having the shop rape my wallet and still not get it to pass.
Thanks