Rear O2's

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Dec 3, 2005 | 06:55 PM

Spenser309

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From: Coppell,TX

Rear O2's

If im throwing codes for rear o2's(bank 1&2, sensor 2) is my car dumping fuel to compensate?

Dec 3, 2005 | 07:03 PM

SSINFUL

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From: Leg Dist #31, WA

Quote:

Originally Posted by Spenser309

If im throwing codes for rear o2's(bank 1&2, sensor 2) is my car dumping fuel to compensate?

What are the codes? No way of knowing what it's doing with out those DTC's...

Dec 3, 2005 | 07:24 PM

Spenser309

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From: Coppell,TX

P0160 and P0140

Last edited by Spenser309; Dec 3, 2005 at 09:33 PM.

Dec 3, 2005 | 07:29 PM

SSINFUL

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From: Leg Dist #31, WA

Quote:

Originally Posted by Spenser309

bank 1&2, sensor 2 no activity detected

To the original question: With ZERO activity, I would think the PCM would stay like it was. However, those GM guys are always thinking.

What incident turned off/unplugged the rear O2's?

Sims would work, but tuning the rear O2's out or limitting their ability to throw unnecessary/unwanted codes is better.