4 Attachment(s)
Ranger 3.2/AUTO surging late on decel
G'day guys,
had my BT-50/Ranger (Duratorque 3.2L/6r80 auto) tuned a while back, runs great apart from surging in the bottom of 3rd gear on decel (rpm/injection timing/calc load alllllll over the shop). Once it grabs 1st its happy again.
Contacted tuner, has put it down to a trans issue... which it may be. I understand the basics of diesel tuning but by no means an expert - hence why I got a professional tune. However, i was able to log the phenomenon and wouldn't mind some of you to cast your eye over it. I won't bang on here - its all in the logs. to me converter seems to be doing what its told and I've run out of knowledge so here I am.
2 logs attached. One is a full stop in D (auto downshift to 1st), and another in 3rd in manual mode.. you'll see it sits there happily surging away in 3rd while stationary until i manually select D.
Really appreciate any time you are able to spare me.