Hey Everyone,

I have a 2004 Discovery II S, it has 93,000 miles.
I'm 5 months past inspection because I keep failing due to a MIL-ON.

I scanned my system and have 5 codes.

P0130 – Generic – O2 Circuit (Bank 1, Sensor 1) – MIL ON
P0150 – Generic – O2 Circuit (Bank 2, Sensor 1) – MIL ON
P0174 – Generic – System Too Lean (Bank 2) – MIL ON
P1174 – Land Rover – Lambda Control Adaption Fault Bank 2. Last Occurrence – Maximum Signal – MIL ON
P0171 – Generic – System Too Lean (Bank 1) - PENDING

The O2 sensors are brand new.
From what I've heard it can be 4 possible problems.

1. Air Intake Leak
2. Exhaust Leak
3. Bad O2's or O2 connectors
4. Faulty Injectors

Has anyone had these combination of codes before?

Any insight would be greatly appreciated.

 

Hi, I'm sorry you are having these issues. I'm not familiar with your year...but my 99 kicked out a slew of strange o2 sensor codes (and one or two others) when the Mass airflow sensor (I think that is it's name) went bad. You might search for that in the forum and see what you find. Never know.

Good luck!
Shannon

 

Read your other thread where I replied.