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Problem solved! I replaced the O2 sensors on both sides, cleared the codes and all issues have dissappeared! She is running great and the gas mileage has improved quite a bit, thanks to all that helped out with your useful information!

Helpful info! Thanks for the input everyone, I'm going to replace the O2 sensors and clean and test the injectors tonight. Then clear the codes and see what happens.:eyerole Thanks again for all the help and I will post the results when I am finished.

Reply The problem is only with the right side O2 sensors, the one on the left is not showing any codes, thanks again for all the information and I will look into getting a SM. I'm thinking it is the sensors or something electronic because after clearing the codes it runs great with no...

I have a 1992 coupe with an LT1 motor, all stock with about 62,000 miles on it. The problem I am having is after the engine gets warm the "Service Engine Soon" light will come on for about 2 minutes then turn off. I checked the codes and got a 63 and 64, which was lean right side heated 02...

Thanks for the information boomdriver, I had a hunch it might be something with the fuel system. The previous owner let the car sit alot which is no way to treat one of these machines! Thanks again forthe help.:)

I have a 1992 standard coupe with an LT1 motor, all stock. Any ideas on what would cuase a hesitation in throttle response at low rpms? I have replaced the TPS already, as well as cleaned the idle air control valve/motor. The hesitation does not become noticeable until the engine reaches...