1998 XJ 2.5 TDI VMI - pulling a Trailer, Clutch, MAF, MAP, Injectors
Hi Guys,
my 1998 XJ 2.5 TDI VMI had a good amount of issues recently. fixed them all except for 2/3 things.
when I pull a trailer weighting a ton max slightly uphill for a while it doesn't do it in 4th gear, if have to use the 3rd - is that a normal thing?
whats definitly not normal is that there is smoke inside the car after a bit smelling like clutch. - only with trailer uphill.
my question is, if I change the clutch, will it have the power to even pull a heavier trailer up and down the hill for a 2 hours ride or do I have to run in 3rd and probably get a heat problem.
the clutch is ok, when cold and tested without driving.
The XJ has plenty of power dragging 2 tons out of the water, driving slow 4L. but seems to lack power when its faster (2H). even without trailer.
its going above 2000 easy and I felt the turbo kick in. but it doenst really feel as it should.
now I tested and cleaned the MAF sensor, unfortunately I cleaned it first (with diesel as I read that somewhere, corona prohibited me to get cleaner) - that was probably wrong. didn't do a measurement before, but now it shows 13V between all 3 grounds (pin 1,2,4) and plus (pin 3). thats probably wrong. But I can pull the plug of the MAF, while the engine is running and it doesn't impact it at all. doesn't go off and no difference while driving.
is that a sign for a ECU problem or did the ECU recognize a bad sensor and does it all with MAP or O2?
Behind the ECU there is a little box, is that the MAP? removing the hose going in there sucks air in (vaccum I guess) with a running engine.
Second injector seems to leak. when I sprays WD40 at it the rpm changes. - could that be the reason for the power loss?
I was about to fill in 100ml aceton to clean the injectors.- once I get some..
it doenst show any error codes I resetted the ECU recently. so its just 12 for now.
thanks in advance
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