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Re: 2000 Chevy 1 ton 454 problems
If you put too much oil on the filter it can get on the MAF sensor giving bad stats, but if you keep the sensor clean then the filter should not be a problem. When you oil the filter you want just enough to turn the filter red, you do not want the oil to be dripping down, plus you need to let it dry for about 6 hours before you put it back on.
About your codes. if you have never replaced your o2 sensors then it would not be a bad idea to do so. However you may want to clean out the throttle-body as well. You could also have a bad injector or fuel rail. I would pray that it is just an o2 sensor.
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2000 Silverado Z71, 5.3L, K&N GenII Air Intake, Y-pipe Exhaust (no muffler), Bosch Platnium +4 plugs, 242k miles and still running.
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