I'm blown away by the quality of your content. We all have lot to learn from you, and not just mechanic, but teaching and delivery of information with clarity. Fantastic channel!

As always, wonderful delivery of information for a beginner like myself and a great production value:))

Thank you for the presentation and Greetings from Paris ! I have a defender TD5 year 2003. If I up-shift quickly with high RPM from 1st to 2d, or 2d to 3d, I feel a crunch/grind in my hand (not so loud to hear it in the vehicle, I can just feel it with my hand). If I leave the RPM/rev normal, and leave a 1 second pause on Neutral between these gears, all is fine. No crunch when downshifting. The gearbox runs with new MTF94 oil. Is this a normal behavior for a R380 ? Are we supposed to UP shift slowly with these gearboxes, losing momentum ? Losing momentum is not an issue on flat road, but annoying climbing a slope. Many thanks for your help and feedback ! Julien

FYI Everyone. If you have come across this video when trying to solve a lack of power in a Discovery 2 with a TD5 engine. The same test of disconnecting the MAF power connection may result in a noticeable improved performance at around town speeds though still lacking power on the motorway - struggling to get over 70mph on the flat and “bogging out” when going up hill. This is still a clear indication that your MAF sensor is faulty and giving misinformation to the ECU. The same may be true on Defenders in some cases as it might depend on which of the two sensors is faulty or how dirty they are or something. Not really sure, but just don’t be confused if when you disconnect the power supply performance improves rather than stays the same. Hope this helps. Guy

This is great - thanks for putting this up!

Thanks for your video, very well explained, I congratulate you. My problem is that I have an on-board computer in my defender td5 to obtain data from the vehicle in real time. I always thought that this car since I bought it was that rough and slow. Since I saw that the MAF reading was 0 on my on-board computer, I began to suspect that it was broken. The fact is that the heating wires for some strange reason have melted. Thanks to your video I have been able to diagnose it and I have already bought one on Aliexpress for € 14. by the way, do you know any Nanocom alternative to be able to read the faults of my ECU? Thanks a lot!!.

My defender td5 sender i baught with the plug pluged out will test if it still work it dont want to go above 80km/h

Great Video Time to test mine, had some performance issues very lazy at around 90km/hr seems balless after that. Keep getting air flow circuit fault

Nice video, how do I know that what the data logger shows is the correct value or is the simple fact that there is a signal enough. The problem I have is that the MAF sensor seems to behave normal. Stationairy 1.9V rising to about 3.5V. But the car has no performance at low RPM. But the car preforms very good with the MAF disconnected. Rgds, Martijn

Thanks! I'm a happy new owner of a 2005 defender TD5 and just begun to log data from the nano com. I have a few things that I find a bit strange after seeing your data :- Max turbo is 202 KPA. Should be 220? - Max Air flow is 350-400 @ 3000rpm. Should be max 600? - EGR data is sometimes 0.0 at some rides. Sometimes I do see data. Suspicious?

if the plug is disconnected from the sensor will the vehicle switch off

I had a remap done from storm tuning which bypasses the maf sensor. The guy gets the info from elsewhere (he says it is more reliable)

This helped, thank you!

Great vid

great info cheers

The vehicle rides but sluggish.i then switch it off and then on again while driving then i get the speed.when i release the excellerator and step on it again it goes back to sluggish again.The revs are there but speed slowly increases to about 6o mph

a bad start on td5 is the maf damage?