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

 

How many miles on your 97 D1?
Mike

 

Hi Mike, My Disco has aorund 125K on it right now. Why do you ask?

 

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