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        General >> Problems >> rev counter
        
(Message started by: ricky on Aug 15^th, 2007, 1:49pm)

Title: rev counter
Post by ricky on Aug 15^th, 2007, 1:49pm

can anybody help to idendify the wiring for the rev counter, ive checked everything and it must be a wiring fault so i need to find where the wiring goes and what colours the wires are, ive replaced the rev counter, checked everything i can think of but no joy, im sure someone can tell me which wires/colours , or where it gets its feed from many thanks

Title: Re: rev counter
Post by petehull on Aug 15^th, 2007, 2:03pm

Afaik the rev counter is controled by the ecu which recieves a signal from the cps (crankshaft position sensor) which I believe is mounted somewhere near the bottom of the engine.... I may be wrong but if you do a search on the site you should be able to find the information.

hth

pete

Title: Re: rev counter
Post by Kjetil S on Aug 15^th, 2007, 2:11pm

And iirc, the car won't start without a signal from the cps, so the problem must lie between the ECU and the dash board somewhere.

Title: Re: rev counter
Post by ricky on Aug 15^th, 2007, 2:33pm

sorry forgot to put 2.9 12v so no crank sensor all runs ok just no rev counter

Title: Re: rev counter
Post by Simmo on Aug 15^th, 2007, 2:40pm

The full wiring diagrams are HERE (http://www.carsoft.ru/avtorepair/sierra_el.html). Says Sierra BUT it is for the Scorpio. :)

Title: Re: rev counter
Post by ricky on Aug 15^th, 2007, 5:11pm

thanks simmo, but i cant understand the wiring, need somebody to understand and read the colours , perhaps i sould admit defeat and go to a auto sparks

Title: Re: rev counter
Post by Snoopy on Aug 15^th, 2007, 9:55pm

The 12v Rev Counter picks up the pulses for the rev counter from the coil low tension side wiring if that is of any help.