Hi All

A while ago i fitted a kph to mph converter.

I do not drive my zed much but i think the gearchange pattern has changed since fitting the above!

under full throttle the power light comes on as usual but the car changes to the next gear too soon ie: doe's not take full advantage of the full rev range under hard accelleration and change pattern is the same even if you take it easy or floor it.

Also no kick down when you floor it unless you in o/d and that only drop's down to 3rd if you stay under 80mph any speed over that and you look pretty daft when you go to overtake something else.. :mad: .unless you turn o/d off then you just grin and go... :)

ive done the usual diag for the auto box and code's are clear.

it makes no difference if i go from norm to power mode.

The only difference is if i use the hold mode-which doe's it's normal job!!

i have fitted a central 20 racing chip as well but i don't recall ecu eprom's ever affecting auto ecu's gearchange mapping..

Tps is also set correctly!!

Any help would be apprieciated... :headvswal

I ve run out of idea's myself other than looking at the box itself...which is less than a year old... :D

AnyOne??

It depends how the speed conversion is working - but there is potential for such problems. If I were you, I'd pull the speed convertor out again and see if the gear change pattern reverts to normal. If not, you've at least eliminated it.

This doesn't make a lot of sense.

As I understand it, the speedo converter just divides the speedo signal from the engine by 1.6 and should have nothing to do with the gearbox or rev counter.

 

Mike...

This doesn't make a lot of sense.

As I understand it, the speedo converter just divides the speedo signal from the engine by 1.6 and should have nothing to do with the gearbox or rev counter.

 

Mike...

It does also give a signal to the ecu to make it think the cars going slower than it really is.

Hence 180kph speed limiter is in theary removed as the delimiter is lying to the ecu...making it think its only doing for example 110kph when you really doing 180kph..

It depends how the speed conversion is working - but there is potential for such problems. If I were you, I'd pull the speed convertor out again and see if the gear change pattern reverts to normal. If not, you've at least eliminated it.

i was going to remove it but i've soldered it in and taped everything up...

i cant see how it's that as my ecu is chiped so i didnt need to connect the delimiter to ecu wire up...its just the signal to the speedo head i connected..

...the spped converter also lightenes up the steering - same reason, car thinks it's actually travelling slower than it really is.

 

Good luck

 

Jack

I've got this feeling it's tps and throttle adjustment time again!!:(