+L J Mac we can only but try.

+Tee Ve thank you.

+William Evans I will get on to the MAP and IAT sensors in a while.

+Danny Otter I've got more to do on sensors and what happens if the 5v reference circuit goes down. Sometimes it another sensor shares the same feed it may kill off another sensor if it shorts to earth / fails.

what a bodger! Try learning about stuff before commenting!

+UKDPO it could be that the MAF sensor is dirty. Can be cleaned with brake cleaner.

+Land Rover Toolbox Videos Gave it a good clean. But still no luck. Best I can get out of the sensor wire is 0.5v. Time to replace it?

check on the pin that supplies voltage to the sensor from the ECU end. You'll need a wiring diagram and /or electrical library which shows you the connector plug pin designations then gently tested it from the back there to make sure iy is not the wire at fault first.

+Land Rover Toolbox Videos All fixed. It had failed, so replaced it. Runs much better now too! Thanks for your help. Jeff

good news!

+Adrian Kingsley-Hughes i am suspicious that it is the EGR wiring which has been terminated and the EGR removed. Will check into this.

wiring diagram. Rave manual electrical library.

rakerholm zass

generally yes.

Hum. Hard one to answer. Especially if it has had in the past, without you knowing a chip or remap. this will throw some right of the correct scent. Fair few factors involved in fuel delivery especially if overfilling. Problem is garages want to satisfy the customer with a quick fix. Proper diagnosis takes time and investigation and internet guessing is not the right way to go with this. Everyone has had an experience or know someone who had a problem with x that was fixed by doing y and z to it. I'd say you need to find someone with a lot of knowledge with Td5 systems and has the kit to check it out properly............ failing that. Learn about the system on the Td5 throughly and spend time diagnosing rather than parts changing. Dunno what else to say. ???

Land Rover Toolbox Videos , oh god is the someway I could contact you over the phone tommorow? we don't seem to have the skill set down where we are compaired to the mids, had the vehicle from new , shes on a fifteenp engine. first engine was mapped after she got tired.this over feuling fault was there after we got rid of the map, we have changed the following, ecu, all relays and fuses, intercooler pipes, turbo, manifold, engine! feul pressure regulator, egr blanked off, no fault showing on t4/snapon fault finding units, injector harness, . but going up a hill or towing you put foot down and then come off gas and she lurches to life. no weird starting faults, wines noises, just lazy top end, no weird smoke bar a little bit of black that you can taste when stood close. all genuine parts. any advice would be grateful before I scrap it!

I am at work most of the time in the helping keep the wheels of industry rolling. Not easy to get hold of and distant diagnostics is not my thing. I think you need to have a word with Gary Woods at Alive Tuning. Who's map was it in the first place? Perhaps the setting the the injector feeling is not set back to where it should be. Only a guess at this point but someone with tuning software will be able to log and read the activities in the ECM fuelling strategy.

***** it was an auto logic remap,, but we got rid off that by putting a new map over it, I have also tried to get through to lr tech team regarding this but I have to take it to a dealer then for them to get hold of someone at solihull. If I do not get anywhere with lr, then if I get the vehicle to you would you be intrested on working on it?

***** also forgot to say it is a new ecu un abused! Lol

lol