Your high geear change problem is the green temp sensor in the head change it and make sure contacts are not damaged in the connector
 
As above I would also add temperature sender on the head think its the green one ,can play havoc wi the gear changes i believe and poor running.....:eek::)
I'll second that, my green sensor had a loose head on it and would stop the gearbox locking up when the temp gauge dropped slightly!!;)
 
Well thought I'd post an update and say a big thank you to all you guys who've suggested various things to rectify my problem. Some helpful, and some funny but mostly very knowledgeable so thank you. Having changed crank sensor and no. 4 injector thus removing the yellow dashboard light I was really struggling to solve my lack of power. In tank pump all working ok egr valve blocked so not in the frame. Took mafia sensor out of play and hey presto I've got power. Looks, sounds and now drives like a rangie. Woop woop one happy girl so big thanks guys.:)
 
Mafia sensor seems about right. They don't seem to have any benefit other than messing you about and extorting money. Glad mine doesn't have one!
 
Lol it would seem predictive text is not my friend. Looks like I may have upset the Don for sure as diff blew this morning. Will be checking for horses head next lol.
 

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