can anybody tell me what colour wire the speed pulse is on a 2wd saph ?

just fitted an apexi boost controller and cant seem to find it

also is there any advantage to wire up the injector feed instead of the revs ?

 

pretty sure there is no electrical gearbox speed sensor on a 2wd saff

 

isnt there 1 for the abs ??

 

abs is the only chance youve got bar putting an inline sender to the speedo cable, the abs on cosworths is very very primative so dont hold your breath waiting for the correct signal

 

what type of signal is it after?

 

 

why cant he use the VSS by the way? or is that signal too basic?

 

What vehicle speed sensor?

 

it doesnt have one.

 

 

im not sure, it just asks for the grey wire to be conected to the speed sensor

 

doesnt have one? i thought all sierras did!

cant you just nick one from a 2.0 gls or an XR4x4 or something and use that then? surely it'd just clip on piss easy

 

I feel a need

A need for

















Gaffer Tape


Steve

 

so doesnt the saph have a speed pulse for the abs then ?

 

Even the 1.3L 3 door pinto with a VV carb from 1983?

Rob, the ABS will have 4 independant pulses from each wheel. They are located on each wheel hub knuckle and the wires poke through the inner wings....

 

cheers mate, so just tap into 1 of them for the controller ?

 

No, because you don't know what kind of pulse it's after

Don't cut the ABS wires there - they're co-ax and sealed - you'll cause problems for sure.

If it is the correct type of signal, then tap into the ABS wiring at the ABS ECU.

Neil.

 

You need to know what kind of signal you need for the controller,You should be able to find a square wave pulse at the abs controller from the sensors,if that is what the controller will use.....

I`ll have a check later and see what i can find..

 

this is all i have



sorry its so small but basicly the bottom wire says "white to speed sensor" thats it

 

up

 

Looking at that mate it says injector pulse in the brackets,so it might just need a Neg pulse which you can pickup at any injector........Do you have manual or electronic injection.?

 

Doh........Just noticed it says saffy in the title..


Will check a wiring diagram shortly and give you a colour code mate...

 

thats the purple wire, i have connected that to the rev counter wire, i wasnt sure weather to wire that up to injectors instead. im sure it has somthing to do with the duty cycle or somthing like that

i thought there would have been more ppl who had fitted theses to cosworths tbh

but if you could find that speed sensor wire that would help a lot as it needs that to learn the gears i think

 

anyone ???? <real tears

 

Rob, ive just fitted one of these and had the same problem.

You need a square wave pulse. Scooby on this site and the westy site helped me out and ive got mine working fine.

If the cossie ABS gives you a square wave (someone else should be able to verify) then tap into that at the ABS ECU. Job done.

If not you may need to fit another sensor like I had to on the Westfield. They are 20 quid and farnell do a quality full stainless steel one, so weather wont be a problem. You can mount it and set it up to count the bolts on the driveshaft where it joins the diff. Obvioulsy needs a bracket made to do this and some wiring run to it.

Any probs drop me a PM.

I dont think you have to have this wire connected unless your using the gear specific boost option.

 

cheers mate

 

The AVCR will display either the RPM or the Injector duty depending on what you chose to tap into.................

Some people have connected both up with a switch to togle between the inputs.

 

great idea mate thanks