Well, it looks like I've found the right place. I just bought a clean 98 Disco and now have a Check Engine light. The Pep Boys tell me the code is P1170, which I can't find anywhere. It seem to be in O2 sensor family. Can anyone help interpret this one?

Thanks in advance.

 

That is a weird code, not showing up on any of my Rover code lists.
How many miles on the engine, how is it driving?

 

P1170 Land Rover Lambda sensor aging tv bank 1Drive cycle C:Signal out of range - above maximum / below minimum

 

Where did you find that code okdiscoguy? I tried to find it for this guy and couldn't.

 

http://www.iequus.com/support/obd2_definitions.php

 

Vehicle has 113k on it. Seems to run just fine. That was the only code that came out of the computer.

I'll bite, just what exactly does " Land Rover Lamda Sensor aging tv senor 1 bank . . ." mean?

 

Its the right hand bank O2 sensor.... But I would check for vaccum leaks in pcv hoses .do a Seafoam treatment ,,deep creep TB and check my plugs and wires before I went spending the bucks for O2 sensors.jmo

 

but at 113K with original O2's you are due. You will get better fuel mileage with new one's as well. What year and mileage? Helps to put it in your signature so people don't have to ask...

 

I have that code too.... have had all 4 O2 sensors replaced. this code showed up after the four sensors were put in, came up a couple thousand miles later. i plan to do a tune up soon, as theres codes for misfires that should go away after tune-up. believe me, ive had a dealer investigating the 1170 code and he couldnt tell me anything about it.

 

Oh, and bank 1 is the driver's side (left) not the right. Pretty sure it means that the front sensor is aged and the rear cannot get the right lean (min) or rich (max) mixture. If I was right on my assumption, you should do all 4 O2's.

JBEGIN- your tune should help this. If it is mis-firing, it can't adjust the mixture right if it isn't burning consistently.