Engine codes 21+34

[Fubar231]

O2 Sensor and Abnormal Turbo Pressure. I put a 3inch downpipe on and im running OPEN DP right now because the catback wouldnt bolt up right. Fixing that this week. But i broke one of the O2 sensor studs, The front one if your standing in front of the car, but the back one is down pretty tight, and i figure thats why the O2 is going off and the abnormal turbo pressure , would that be caused by hitting fuel cut? I was adjusting my MBC and hit FC a few times while making runs. More than twice making me think it store the code. Pull the EFI and check in a day?

[Jeeves]

Originally Posted by Fubar231

O2 Sensor and Abnormal Turbo Pressure. I put a 3inch downpipe on and im running OPEN DP right now because the catback wouldnt bolt up right. Fixing that this week. But i broke one of the O2 sensor studs, The front one if your standing in front of the car, but the back one is down pretty tight, and i figure thats why the O2 is going off and the abnormal turbo pressure , would that be caused by hitting fuel cut? I was adjusting my MBC and hit FC a few times while making runs. More than twice making me think it store the code. Pull the EFI and check in a day?

Those two codes are just stored codes, they won't affect day to day operation of the car. Well, ok, the O2 sensor code will throw it into permant open loop. Clear them and they won't come back until you either hit Fuel Cut again or until it reads the O2 Sensor out of range.

If you've got 2 (stock) O2 sensor loctaions, you must have a California emissions car (I believe they had provisions for two O2's) but I've only seen diagrams for those cars, never actually seen one in person so I'm not even sure if such a beast truly exists. The typical 7M only has one O2 bung and it's the weird Toyota bolt down style IIRC.

[Fubar231]

Yeah to clear codes you pull the EFI right?