[yfz162]

Does anyone have any idea why my car would be throwing the o2 sensor codes? I have replaced all freaking 4 of them with the Bosch brand from Auto Zone. The car throws lean and rich codes and shows a low voltage code. The car started throwing these codes after i rebuilt the motor. I put a hole in piston #8, so i rebuilt the engine using all forged internals. The car was blowing oil through the intake all the way up into the cold air fenderwell mounted K&N. Is it possible the oil damaged my mass air sensor? Wouldn't it show a code for it? My car runs like **** right now lol. Anyone have any suggestions....take it to a tuner?

[gdp2001]

You can try cleaning the MAF with rubbing alcohol. I did that once. It was not the problem I was having but it did not hurt anything.

[ITLRUN]

If your getting, 02 codes and you replaced all four you could have a bad computer. You could clean your MAF sensor, I don't know about rubbing alcohol, they do have a MAF cleaner. CRC, puts out a MAF cleaner its a spray like throttle body cleaner. Just make sure, you let it dry completely before reinstalling it, and trying to start your car, Mike D.