Hi there,

I am new to the Range Rover sport world and I have a 4.4 HSE Sport. Everything seems to be spot on with the car but there is a small niggle which comes and goes. It will beep and flash up reduced engine performance on the dash however there is no noticeable loss of power and the car drives spot on with plenty of power.

Usually 5-10 minutes later it will disappear and the car is non the wiser. This usually happens within 15 minutes of driving the car however other times I can drive it for 30 minutes and nothing pings up. Today however for the first time the engine did stall going around a corner in a car park after driving for about 40 minutes but started back up again straight away. Prior to this I did notice that on light throttle the engine was very slightly applying power on and off (when you put your foot down the power is on straight away).

Anyone have any suggestions? my gut feeling is to replace the MAF and air filter.

Thanks,
Peter

Your gut feeling should be to have the fault codes read, and a fault diagnosis carried out before replacing parts unnecessarily

I had this and it was the throttle sensor Range Rover Sport HSE DYnamic SDV6 Velocity blue 2020 MY
Range Rover sport HSE Dynamic P400e Silver
Range Rover Sport 3.0 SDV6 HSE Dynamic 2016 MY
Range Rover sport 3.6tdv8HSE 2007 Gone
Range Rover sport 2.7tdv6SE 2005 Gone
Range Rover sport 2.7tdv6SE 2007 honey
Range rover Vogue 2005 4.4 - GONE and missed
BMW 535d M sport 2006 - GONE not as missed
BMW X5 4.4 2004 sport - GONE

Throttle body,I had same problem the flap in the body was stuck,LR assist came out pulled front pipe off freed the flap & all was good.luckily mine is still under warranty so when it went in for service they fitted a new throttle body. Andy.
21 Ford Ranger
Gone but not forgotten
Focus RS Red Edition
2015 RRS AB Fuji.
2014 RRS SC Santorini
2016 VW Amarok
2014 RRS AB Fuji
2012 RRS Red Edition Fuji
2015 Nissan Navara
2012 RRS SE Santorini
2008 RRS White
2007 RRS Santorino

Where that little yellow mark is put a screwdriver under the metal clip,lift up & pull the front pipe off & flap is there,you can spray in with throttle body cleaner to help it.
 Andy.
21 Ford Ranger
Gone but not forgotten
Focus RS Red Edition
2015 RRS AB Fuji.
2014 RRS SC Santorini
2016 VW Amarok
2014 RRS AB Fuji
2012 RRS Red Edition Fuji
2015 Nissan Navara
2012 RRS SE Santorini
2008 RRS White
2007 RRS Santorino

Thank you everyone. Unfortunately it didn't store any codes so I don't think replacing the MAF sensor would really work at this stage. I did notice that it was a new-ish part (looked to be in good condition) so it may have already been replaced recently anyway.

What I have done so far is to replace the air filter and use electrical contact spray on the MAF sensor (let it dry before reinstalling but be careful not to touch the wire). This did seem to help a little bit but it did ping back about 30 miles later and then go off after 10 seconds when coming of the motorway and driving around town.

I did what other people have advised above and used a cleaner on the throttle body (opening the flap at the same time). I did notice a lot of dirt and crap come off which I then wiped away with a old cotton shirt. I might of sprayed too much in because it was hesitant to start but then it started no problem. I will let everyone know how I get on but hopefully cleaning around the flap might help with this warning.

Thanks all,
Peter