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2010-2012 Range Rover MkIII / L322
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31 Posts
Discussion Starter #1
Have been getting a restricted performance error code in my 12 Range Rover Supercharged for the last few days now. Haven't really seen the performance go down. It still flies if I floor it.

Connected an OBD II scanner and got to below error codes. Can anyone help me with what they mean?


  1. P0301: Cylinder 1 Misfire Detected
  2. P0302: Cylinder 2 Misfire Detected
  3. C342D: Possible….Throttle position sensor (TPS) or the idle air control valve (IAC)?? Not sure
  4. P002E: B Camshaft Profile Control Circuit Low Bank 2
  5. P2E00: ISO/SAE code... I think. Haven't found anything specific in my search. Think this means the car does not meet standard due to some issue. Other codes would give more details of why???

Have tried the below so far:
- Cleaned up the air intake filters. Sprayed MAF cleaner on the mass airflow sensors while I was at it.

Could it be the battery? I was working on replacing the brake pads and rotors for the last week and the car was sitting with the doors open.

Thanks you in advance!!!
 

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Maybe someone will have a more specific tact for you to take but I was getting that some time ago which was so intermittent I ignored. It mostly happened driving in the mountains. Later rough idle... I pulled and cleaned the throttle body to the point it looked new, cleaned plenum, cleaned all sensors/harness with electronics cleaner, replaced the air filter, replaced all the plugs and coils. I essentially did an intake service since it needed it anyway, problems remedied. It could be the battery but if it's holding 12.6V+ through startup most likely not.
 

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2010-2012 Range Rover MkIII / L322
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31 Posts
Discussion Starter #3
Update to see if anyone can help. Thinking of doing a full throttle body clean. Did a lot of searching and most of the rpm and hesitations issues seemed to be resolved by a throttle body cleaning. Looking for confirmation.

Below is the symptom (video). It starts up okay and holds the RPM. After about 10 seconds it drops to 600-700 rpm and keeps fluctuating. While driving, it just looses power. Same happens when put on neutral on idle and if i try manual shifting while driving.
https://www.youtube.com/watch?v=cav7trjHA44&feature=youtu.be

Below is the live IBD2 data:
https://www.youtube.com/watch?v=YZJxwiGdZBk&feature=youtu.be

Below are the pending error codes from the OBD2 scanner that show up:
https://www.youtube.com/watch?v=nbTvKuBDZMI&feature=youtu.be

Any insight would be appreciated!!!


 
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