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O2 Sensor Signal Circuit Slow Switching From Rich to Lean

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Old 07-18-2006, 03:36 AM
hoberock's Avatar
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Default O2 Sensor Signal Circuit Slow Switching From Rich to Lean

I get a OBDII fault code of P1179 (O2 Sensor Signal Circuit Slow Switching From Rich to Lean (Bank 2 Sensor 1)) on my '79 Disco I. Any ideas what this means? It drives fine otherwise...

Thanks,
Tim
 
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Old 07-18-2006, 12:00 PM
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Default RE: O2 Sensor Signal Circuit Slow Switching From Rich to Lean

How many miles on your 97 D1?
Mike
 
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Old 07-18-2006, 03:20 PM
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Default RE: O2 Sensor Signal Circuit Slow Switching From Rich to Lean

Hi Mike, My Disco has aorund 125K on it right now. Why do you ask?
 
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Old 07-18-2006, 10:24 PM
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Default RE: O2 Sensor Signal Circuit Slow Switching From Rich to Lean

At 125,000 miles all your o2's should be replaced, they are fried at that point and won't allow your engine to perform to it's limits.
There are a few good web sites to find O2's at a half decent price.
DAP and Rover Connection as well as Discount Rover.
Hope this helps,
mike
 
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