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  1. Question about P400e A/C performance?

    Range Rover Mark IV / L405
    Here in the US ( i'm in California) , there's still no available P400e on dealer's lot to test drive. So if our friends/ neighbors from the other side of the pond can comment on the aircon specifically on how fast it can cool the cabin. Here in California we are having 99 F to 114 F heat waves...
  2. Restricted performance mode, but now seems fine?

    Range Rover Sport / L320
    We were coming home from a roadtrip this weekend in my 2012 Range Rover Sport Super. Overtook a truck on the freeway, probably hit about 85mph while overtaking in order to pass quickly/safely. After passing, I took my foot off the accelerator to ease back to speed limit, the car suddenly...
  3. HSE td6 reduced performance mode Help

    Range Rover Mark IV / L405
    In the past month have been bitten by this bug once set hard code fixed problem now back. Dealer has had the car over a week no solutions cannot get to repeat. They are putting 50 miles a day on it no joy. When it goes into this mode no power at all suggestions please For us it happens once or...
  4. P0089-64 (E8) Fuel Pressure Regulator 1 Performance

    Range Rover Sport II / L494
    2016 Range Rover Sport Supercharged 86K miles. (Out of Warranty) is showing the following Code: PCM-Engine Petrol V6 P0089-64 (E8) Fuel Pressure Regulator 1 Performance -Algorithm based failure-signal plausibilty failure. What is the real cause of this code? Is it the Fuel Pump? OR...
  5. 2010 L322 Restricted Performance

    Range Rover Mark III / L322
    Hi there guys. I have a 2010 RR. I got the restricted performance message today with the yellow triangle but no engine light. The RR won’t go above 55km/hr. What could this be ? The battery? Please help
  6. Restricted performance light

    Range Rover Evoque / L538
    My 2015 evoque has done 36.000 miles and is serviced by the main dealer in Taunton regularly. I was driving at 50mph ish on the motorway when the dash lit up with the Restricted Performance error. I drove home carefully, swirtched off and back on and the fault remained. Got the manual out and it...
  7. Slight but noticeable loss of performance

    Range Rover Mark II / P38
    Hi all, I must confess that I have not contributed to the Forum for ages, primarily because my high mileage ((350,000km) P38 4.6 HSE (1997) has been performing faultlessly for ages. I have just returned from a boating trip towing my heavy yacht back from the Gippsland Lakes. The day was very...
  8. 2011 HSE - Smoking & Reduced Engine Performance

    Range Rover Mark III / L322
    About five days ago I noticed a hesitation while cruising at +/-60mph in my 2011 HSE; It happened 3 times within 20-30 seconds, but then ran fine. I assumed that it may have been something with the gas, as I had just filled it up that morning. Yesterday I felt the same sensation at about 40mph...
  9. DUI Performance Distributor Wiring

    Range Rover Classic
    Hello, I just need some help wiring my HEI DUI performancedistributor, I know BATT is positive (obviuos), but, Where do I have to connect the cable that leaves the distributor to the ECM? To Tach on distributor?
  10. 2012 L322 SC with restricted performance message in dash

    Range Rover Mark III / L322
    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...
  11. restricted performance warning

    Range Rover Sport / L320
    Hi guys, I'm desperate to solve the mystery of a red warning símbol "restricted performance" in my RR sports Hse 2009 year. I have taken it several times to a RR dealership but they are hopeless. They said that it was related to water in fuel but I think this is simply a lie to get rid of me...
  12. RRS supercharged limited performance

    Range Rover Sport II / L494
    Hey everyone just joined this site to try and get some help as my local “Range Rover specialist” garage is at a loss. I live in Qatar and have a 2013 Range sport supercharged. It recently got a new head gasket under warranty but the day I received it back I got the “limited performance” warning...
  13. Actual performance: SCV6 MPG

    Range Rover Sport II / L494
    I have been seeing more questions about fuel efficiency so I thought it was an appropriate time to provide some updated data from my 2014.5 l494 with the SCV6. This data is hand-calculated using actual miles and gallons at each fill-up. Type of driving is mixed between highway and rural with...
  14. Reduced Performance warning

    Range Rover Sport II / L494
    So, I got this warning this morning on my 2018 RRS TD6 while driving down my driveway. After noticing much reduced power, I stopped the engine, opened the door, and restarted it. All was normal then. I put in an email to my dealer, but it’s Sunday. Not loving this warning on week 3 of owning...
  15. snow performance

    Range Rover Mark III / L322
    so i had my 2010 SC in the NYC area storm today. I just had new blizzaks out on and im pretty disappointed with the overall performance/stability of the car. With full snows like blizzaks its very twitchy and unpredictable. I also drove my lr4 which has nokain WR3 (not hakkas) and it was much...
  16. Restricted Performance - multiple misfires

    Range Rover Mark III / L322
    I have a 2010 Rangerover HSE that keeps starting up in restricted performance in the mornings when it is colder. I just have to stop the engine and then restart the engine and then the restricted performance is gone and the car drives normally. The error codes say multiple misfires on multiple...
  17. Off Road & Rough Road Ride & Performance HSE vs Supercharged

    Range Rover Mark IV / L405
    Off Road & Rough Road Ride & Performance HSE vs Supercharged Friends, since relinquishing my L322 I have been restoring my old Classic GDE while searching for an L405 which like all my past Range Rovers will most likely spend much if not most of its time off road. I am wondering what people's...
  18. 2011 RR Sport Supercharged with 'Restricted Performance'

    Range Rover Sport / L320
    I need some help with this warning light that has come on recently in my RR. 'Restricted Performance' along with the yellow engine light and the red triangle with '!" light. This vehicle has 90K miles and has always been serviced. Please advise. This is the second time I've tried to post...
  19. Reduced Performance Warning, rough idle -- RESOLVED

    Range Rover Sport / L320
    A while back my 2012 Range Rover Sport would run noticeably rough (exhaust was smoking more than usual, idled a little erratically, and the car just seemed louder than usual. Every so often during startup the Reduced Performance indicator would come on as well. Normal driving seemed to be fine...
  20. Stainless Sports / Performance Exhausts: Khan, Overfinch etc

    Range Rover Mark IV / L405
    I'll prefix with the fact that I know most readers are US based and I'm unsure if the SDV8 Diesel is even available... :-) Has anyone tried or thought about swapping the OEM exhaust for an aftermarket stainless replacement such as Khan (crosshair), Overfinch, or similar on a diesel RR? I'd...