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1997 Lexus ES 300 - Page 6 Questions & Answers
I have a 1997 lexus es300 check engine light came on code PO420 what could this been
Code P0420 indicates cat convertoer efficiency below threshold. Sorry, but this usually means the cat is shot. Probably will need pro diagnosis, and if cat is indeed bad, have them try to figure out what killed it. Can be anything from misfires, to coolant getting in the combustion chamber. Outside chance of o2 sensor problem, but this one usually requires the sensors to be working correctly to set. Due to the diagnostics neccessary, probably you will save money by having it looked after by an experienced independant, who's familiar with this model.
Also I forgot to mention I can't use my gear
I am sorry, but with the information provided it is apparent that some details are missing and I am unable to assist you with your problem. The only part of the problem that I have seen is the "also I forgot to mention...." That tells me you have more information that is not on this post and without more details I can offer no solution.
Air conditioner blowing hot air and car
Air conditioning is one area where the owner generally is not qualified or equipped to perform the necessary repairs. If you are overheating and the ac isn't cooling I would check the condenser (radiator in front of the engine radiator) and made sure it's not obstructed. Also make sure that the electric fan comes on when you engage the A/C. Beyond that there isn't much you really can do except have an professional run a diagnostics on the system.
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