The zed is fitted with a kmh->mph converter chip on the speedo. It is causing the steering to go lighter and the autobox is all over the place. Yesterday I disconnected the whole cluster and we tried it out, now the autobox was shifting much better but still a little late, but after a minute or 2 the steering went dead heavy, but went normal again after turning off and back on, maybe thats because the cluster is disconnected. Im not sure. I found this last night (i think it was vijay who posted it, cant find it again though, doh!) and it is wired up differently to ours.

On ours the red and black wire are the same but the orange and green are yellow and grey on ours. The red circle is the same as on ours, however the green circle isnt, the black wire is connected under the screw, it looks like one of those traces there is broken. Any reasoning behind this?

 

And finally, what converters are all you other import auto owners using, and have you ever has issues with the autobox caused by them?

 

Thanks

Clarkey

Clarkey

 

...a bit out of my depth, but with the problems you describe I'd be looking at a faulty speed sensor...

 

Good luck

 

Jack

i've got the same problem but i'm looking to get a new speed sensor...i thing that's the problem...

would a conzult show up a faulty speed sensor? how much is a new sensor anyway?

The red and black wires are the power to the convertor box.

 

The orange and yellow are where the box has been cut in to the circuit so it can 'frig' the pulse signal to the speedo.

Instead of the signal going straight from the 4-way connector to the speedo circuit board, it is diverted up the orange wire, through the convertor box and back to the speedo down the green wire.

 

QED.

 

On mine the wire is spliced into the pulse line with a Scotchlok rather than cutting the board and proper screw terminals are used rather than soldering the plastic flexi-board.

It works the same way though.