Hi, just wondering if anyone has come across no power on the injector harness, checked out with test lamp no power, tried harness at Ecu plug for power none, pulled plug tried the two contacts still nothing there is power on the relay just wondering if my ecu is duff, this all started from in tank pump fail, not getting any fault on my iCarsoft v2 reader baffled to say least...thanks in advance for any replies...

Any chance you've got a blown a fuse either through the pump failing(shorting internally) or shorted a positive wire when the pump was changed ? I would check your fuses if you haven't already.

Fuel pump , Fuse 51 , 10 amp located in the passenger compartment fuse box.

Also rear loadspace fuse box , Fuse 85 , 25 amp.

Thanks mercs600 will check fuses again later and see if they’ve blown, have changed avo foreign meter and am getting a lowing voltage so that seems ok...

Last edited by jefus957 on 12th Jan 2020 9:38pm. Edited 1 time in total

Update checked fuses both ok, checked ecu relay voltage on red wire and the 2r/w wires 12.5vt,but no volts on the ecu injector plug terminals or the r/w wires when plug is in situ..got injector system fault on dash display but as stated before no faults showing on my I-carsoft LRV2 scanner tool,have replaced all injectors which led me to check for voltage at injectors none then onto ecu, beginning to think it is the ecu, seen them on eBay with same numbers but am wary to get one, not sure if it will affect the keys etc..the joys of ownership

On my TD6 the large black housing in the engine bay on the left hand side which has an ECU has a fuse. Worth checking. Mine maybe an addition as mine has been chipped

After fueling up one day a few years ago, I drove a few hundred metres down the road and the engine cut out.
I checked with my iid and it came up fuel related(sorry I cant remember exactly what it said.
My mechanic found the fault was related to one of the bigger fuses in the rear compartment after he changed the smaller filter(under the passenger door) and it still would not run.
I can get the number of the fuse later if you need it.

littlecub

Not done any work on motor for couple of months still got back to problem with no start, in the end it’s turned out to be a broken wire connection on injector rail sensor plug, starting first time every time now hurray, just got sort out water in the channel below Nsr kick plate, sealed sun roof up as not used so at mo baffled will av research and c if I can find source always something with rr but still love em...