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as for the wiring the dealership helped out for free :bounce: the color coding referred to in the first post was done by a mechanic for personal reference. Supposedly on newer vehicles the plugs are color coded. Both o2 sensors were bad once replaced and plugged into the correct plug passed...

yes R-12 is just as easy but like has been said before you can't buy it over the counter w/o epa license. what you can buy is freeze-12 which is compatable w/ r-12 but is availabe w/o license, haven't used it personally some I've talked to said it works fine others say dont' touch it. I'm w/...

93 5-speed test is rolling test passes all the high speed test but fails the low speed on high CO allowed is 1.24 reading is 4.61. Check engine light came on while he was testing. codes reavealed right & left bank Lean & Rich codes. The tester suggested 02 sensor replacement...