Whats that thing do then ??

[badredwedge]

There is a thingy / vehicle speed sensor ? fitted to the speedo cable on my Hotwire 400 does it do anything?? do they break down?? can you fix em?? what effect does it have ??? can I fit one from a disco / r-rover ??

[DJC1001]

It is a Landrover / RR part.
It tells the ECU if the car is moving or near standstill.
When your foots off the gas pedal it then knows whether to support idle (supply fuel) or total fuel cutoff because you are decelerating. (hence less flames and pops on overrun than a flapper)
Idle speed is then controlled by the stepper motor.

For Hot wire info. its worth picking up a 1970 - 1992 RR manual - £2 on Ebay

David

[leorest]

DJC1001 said:

It is a Landrover / RR part. It tells the ECU if the car is moving or near standstill. When your foots off the gas pedal it then knows whether to support idle (supply fuel) or total fuel cutoff because you are decelerating. (hence less flames and pops on overrun than a flapper) Idle speed is then controlled by the stepper motor. For Hot wire info. its worth picking up a 1970 - 1992 RR manual - £2 on Ebay David

Now this is a bit James Bond, but, you could fit an override switch so that you can either have, “Economy mode” (like hot wire) or, Pops, Bangs & flames mode like wot the flappers do!
Though I bet it would always be in the same setting a bit like traction control on a hire car!

I don’t know if it would work but it sounds fun anyway
L