[NJRover]

Does anyone know where the O2 sensors are located? My Check Engine Light came on (orange) and I've read this could be the main culprit.

 

[John C]

Are you getting any codes on the display?

The O2 sensors are right before the cats, just below the exhaust manifold.

 

[NJRover]

Thanks for the quick reply. Not sure how to check for codes w/out brining it to the dealer? Didn't want to go that route if I didn't have to. The info I found said most likely O2 sensors need cleaning. I was going to attempt that first, then disconnect from the battery hoping that would solve th eproblem.

 

[John C]

The code display is under the passenger seat. I'm not 100% sure but I think your model year has the display. You would have to remove the side cover under the seat.

If it is the O2 sensor then you probably need to replace it and not clean it. You can get them cheap from Nathan Crabtree. I tried the Nissan O2 sensors ($50) on my 88 RR but I had to splice the wires to connect them.

If you need more info feel free to contact me at 917-605-3591.

John

 

[Disco Mike]

Don't jump into O2 sensors until you get the codes read.
For the record, O2's can not be cleaned in any way shape or form. When they fail it is not because they carbon up but because they can no longer transmit a proper signal based on the O2 level in the exhaust.
Get your codes first. How many miles on your truck?
Mike J.

 

[NJRover]

Thanks for the help, truck has 83,000. I'll check for the codes. Is there a master code list available? I think I read somewhere on rangerovers.net but not sure?

 

[John C]

http://www.fourfold.org/LR_FAQ/Disco/FAQ.Disco.Engines.FaultCodes.html