Fault codes ?

Bullnose75 · 19th February 2019, 10:48

Have had the amber check engine thing on the screen off and on for a while. Now I've got the OBD2 Torque screen working it turns out I have the following faults
Currant fault in Red PO155 Powertrain O2 Sensor Heater circuit (Bank 2 Sensor 1)

Pending faults in yellow PO172 System too rich (Bank 1) and PO175 System too rich (Bank 2)

Any ideas what I need to do to sort these faults ? Don't know if the System too rich faults are anything to do with the car having LPG conversion ?
Paul

stocktake · 19th February 2019, 12:28

looks like you have a lambda sensor fail, there are two or three of these on the KV6 (year dependent) you will find one screwed into the exhaust manifold on each bank and the third (if applicable )after the cat iirc.

Bullnose75 · 19th February 2019, 17:24

Quote:

Originally Posted by stocktake

looks like you have a lambda sensor fail, there are two or three of these on the KV6 (year dependent) you will find one screwed into the exhaust manifold on each bank and the third (if applicable )after the cat iirc.

Cheers Dave. If it is a faulty sensor which bank of the V6 is classed as Bank 2 ?
Would it be the one nearest the windscreen ?
Paul

19th February 2019, 10:48	#1
Bullnose75 Avid contributor Rover 75 Tourer 2.0 V6 LPG Join Date: Apr 2018 Location: Colchester Posts: 210 Thanks: 4 Thanked 50 Times in 39 Posts	Fault codes ? Have had the amber check engine thing on the screen off and on for a while. Now I've got the OBD2 Torque screen working it turns out I have the following faults Currant fault in Red PO155 Powertrain O2 Sensor Heater circuit (Bank 2 Sensor 1) Pending faults in yellow PO172 System too rich (Bank 1) and PO175 System too rich (Bank 2) Any ideas what I need to do to sort these faults ? Don't know if the System too rich faults are anything to do with the car having LPG conversion ? Paul

19th February 2019, 12:28	#2
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,586 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	looks like you have a lambda sensor fail, there are two or three of these on the KV6 (year dependent) you will find one screwed into the exhaust manifold on each bank and the third (if applicable )after the cat iirc. __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident