Tacho transducer

[custommodz]

I think it's called that, or some
might call it a vss, think mine is broken and looking for a new one. Wreckers were trying to charge me $100 for it, if this is a good price, I'll pick it up tomorrow.

[Froto.gr]

[quote][/quote]this could be your stepper motor mate it actully a fault with the fto/gto here how it works,,,

The stepper motor is used to control the idle speed according to revs and idle switch position. The throttle body has a throttle plate (butterfly valve) that is levered open by use of cable and returned by a spring. A spigot on the other side of the throttle body drives a resistor / switch to tell the engine ECU what position the accelerator pedal / throttle plate is in. When the accelerator pedal is not depressed and the throttle plate is closed the idle switch is made and the revs of the car are controlled by the Idle stepper motor.

so if your car revving funny up down so on it sure sign it at fault,

if you look up stepper motor on net you see picture to help you,,

[brent88]

u can clewan ya stepper motor theres guides on the net everywhere. if u recently disconnected your battery then the stepper motor is more likley to play up especially in final gear under 2000 revs