vn series 2 v6 problem so i put my manual back into first at 20 and flattened it going to over take, and it didnt wanto go past 40km, normally it shoots upto 65/rev limit. it was like it didnt wanto rev past 3,000. it wasnt bouncing it was smooth but just not reving up. i knew this was bad so i cruzed. hit a higher speed limit and went to flatten it in 2nd, same thing, it was booting then in 2nd at 75km it just stoped reving. like i was past the power range or something. it had about 10 kw. something was stopping it from reving past 3/4000. any suggestions. i didnt think it was so much the dif/clutch/gearbox. more like the ecu going nutz. please help it doesnt always happen just sometimes. and i only noticed it yesterday.
i think a blocked CAT can do that...I didnt think your meant to change into 1st when going 20kmph. I could be wrong i usually drive an auto.
Possibly the computer is going into module mode & not allowing the timing to advance. Is there any trouble codes.
no trouble codes. it only does it sometimes. wen i say 20 i was probly doing 10 due to dodgy speedo how can i tell if my cat is blocked? could it be a computer problem? it did it again today in second going flat it wont go past 70/80
Does the exhaust have a rattle in it? give the mufflers a love tap(kick) and listen for any rattling noises. sometimes the baffle plates inside the mufflers let go and can partially block the muffler/zorst causing flow issues which normally present as an engine that won't rev very well. mine rattles like a biatch, just never got around to that 2.5" upgrade system
i am compleatly unsure y it does this, it was doing it sometimes yesterday. I recently got a new exhaust so i doubt its that, but my exhaust has got more quiet in the last 2 weeks. but i still had a stock rusty and probly blocked cat, And massive cracks in the stock headers. i will try resetting the comp. thanks for all the replys.