Fun codes
Thread Starter
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Winching
Joined: Feb 2012
Posts: 610
Likes: 1
Fun codes
Hello everyone!
After a few thousand mile road trip back home with the new to me D2 I have some codes popping up. (Yes I changed all fluids except transmission before the trip. I didn't have time todo the transmission)
Here are the codes I am getting
P0340 Camshaft Position Sensor Circuit Malfunction
P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
P0174 System too Lean (Bank 2)
P1174 Can't find information but I did find this P1174 code - Land Rover Forums : Land Rover and Range Rover Forum
after reading that, I will do this inspection:
DiscoWeb Message Boards
Pending code:
P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
I should note that I have driven the truck roughly 5K and haven't noticed a difference since the day I picked it up (Little more than a month ago). My MPG has gone down though. No more 18 MPG more like 12-14. I'm not one to throw parts at it but it looks like I need new o2 sensors and replace the camshaft positioned sensor. I have read that when the CPS goes, it often leaves the driver stranded until it cools off. I am yet to have that happen (knock on wood)!
Thoughts before I start pulling rusted out o2's off old exhaust pipes?!
It looks like the cap won't be hard to inspect and replace if it is leaking or cracked.
Thanks
After a few thousand mile road trip back home with the new to me D2 I have some codes popping up. (Yes I changed all fluids except transmission before the trip. I didn't have time todo the transmission)
Here are the codes I am getting
P0340 Camshaft Position Sensor Circuit Malfunction
P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
P0174 System too Lean (Bank 2)
P1174 Can't find information but I did find this P1174 code - Land Rover Forums : Land Rover and Range Rover Forum
after reading that, I will do this inspection:
DiscoWeb Message Boards
Pending code:
P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
I should note that I have driven the truck roughly 5K and haven't noticed a difference since the day I picked it up (Little more than a month ago). My MPG has gone down though. No more 18 MPG more like 12-14. I'm not one to throw parts at it but it looks like I need new o2 sensors and replace the camshaft positioned sensor. I have read that when the CPS goes, it often leaves the driver stranded until it cools off. I am yet to have that happen (knock on wood)!
Thoughts before I start pulling rusted out o2's off old exhaust pipes?!
It looks like the cap won't be hard to inspect and replace if it is leaking or cracked.
Thanks
Super Moderator
Joined: Jan 2011
Posts: 16,322
Likes: 88
From: Savannah Georgia
CPS does not behave like the CKP (crank shaft position sensor) - which has coil windings that go open when heated up, then close back up when cooled. The CPS has a fall-back strategy, uses values stored in memory - from the RAVE:
l Front HO2S sensor ageing period diagnostic disabled (NAS only)
and for that code -
In the event of a CMP sensor signal failure any of the following symptoms may be observed:
l
Ignition timing reverts to default values from ECM memory.
l
Loss of cylinder correction.
l
Loss of active knock control.
l
Loss of active knock control diagnostics.
l
Loss of cylinder identification for misfire diagnostics.
l
Loss of quick synchronisation of crankshaft and camshaft for cranking/ start up.
l
Fuel injection could be 360° out of phase.
l Front HO2S sensor ageing period diagnostic disabled (NAS only)
and for that code -
P1174 System too lean (bank 2) Additive injector adaptive fuelling - lean limit exceeded RH bank
The system can adapt for wear of parts and aging of some components. You have reached the edge of the adaption allowed. New O2s may certainly restore this. Might also be time from some BG 44 or SeaFoam.
The system can adapt for wear of parts and aging of some components. You have reached the edge of the adaption allowed. New O2s may certainly restore this. Might also be time from some BG 44 or SeaFoam.
Administrator
Joined: Apr 2006
Posts: 25,707
Likes: 107
From: Denver, Colorado
You have possibily 2 issues, 2 tired 02 sensors, replace them, then go get your charging system checked just to rule out any side electrical issue that might be causing your cam sensor to be acting up. Your voltage must be between 13.6 and 14.4 volts, if it is good, then a new cam sensor is in your future.
Thread Starter
|
Winching
Joined: Feb 2012
Posts: 610
Likes: 1
CPS does not behave like the CKP (crank shaft position sensor) - which has coil windings that go open when heated up, then close back up when cooled. The CPS has a fall-back strategy, uses values stored in memory - from the RAVE:
l Front HO2S sensor ageing period diagnostic disabled (NAS only)
and for that code -
In the event of a CMP sensor signal failure any of the following symptoms may be observed:
l
Ignition timing reverts to default values from ECM memory.
l
Loss of cylinder correction.
l
Loss of active knock control.
l
Loss of active knock control diagnostics.
l
Loss of cylinder identification for misfire diagnostics.
l
Loss of quick synchronisation of crankshaft and camshaft for cranking/ start up.
l
Fuel injection could be 360° out of phase.
l Front HO2S sensor ageing period diagnostic disabled (NAS only)
and for that code -
P1174 System too lean (bank 2) Additive injector adaptive fuelling - lean limit exceeded RH bank
The system can adapt for wear of parts and aging of some components. You have reached the edge of the adaption allowed. New O2s may certainly restore this. Might also be time from some BG 44 or SeaFoam.
The system can adapt for wear of parts and aging of some components. You have reached the edge of the adaption allowed. New O2s may certainly restore this. Might also be time from some BG 44 or SeaFoam.
You have possibily 2 issues, 2 tired 02 sensors, replace them, then go get your charging system checked just to rule out any side electrical issue that might be causing your cam sensor to be acting up. Your voltage must be between 13.6 and 14.4 volts, if it is good, then a new cam sensor is in your future.
Thank you everyone who is chiming in!
Thread Starter
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Winching
Joined: Feb 2012
Posts: 610
Likes: 1
Just had voltage tested and it came in at 13.0V. After removing the black plastic protection stuff that is around the battery cables I found that I have some serious corrosion going on. That will be addressed along with a new battery.
Thread Starter
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Winching
Joined: Feb 2012
Posts: 610
Likes: 1
After replacing all 4 o2 sensors and doing spark plugs I now have the following codes:
PO161: Oxygen O2 Sensor Circuit Low Voltage (Bank 2, Sensor 2)
PO154: O2 sensor no activity circuit (Bank 2, Sensor 1)
P016O: O2 Sensor Circuit No Activity Detected (Bank 2, Senor 2)
PO141: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
What do you think?? Why would I get these after I replaced them?? I keep clearing them but they come back on the Ultra Gauge!
PO161: Oxygen O2 Sensor Circuit Low Voltage (Bank 2, Sensor 2)
PO154: O2 sensor no activity circuit (Bank 2, Sensor 1)
P016O: O2 Sensor Circuit No Activity Detected (Bank 2, Senor 2)
PO141: O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
What do you think?? Why would I get these after I replaced them?? I keep clearing them but they come back on the Ultra Gauge!