I HAVE JUST GOT MY RS 500 RUNNING AGAIN AFTER A REBUILD CAR TICKS OVER PERFECT BUT WHEN YOU REV IT UP IT CUTS OUT LIKE THE IGNITON HAS BEEN CUT OFF I HAVE TRYED EVERYTHING I CAN THINK OFF I HAVE REPLACE THE FOLLOWING COIL,PHASE SENSOR,CRANK SENSOR,IGNITON MODUAL WATER TEMP SENSOR AIR TEMP SENSOR, AND MAP SENSOR HAVE ALSO TRYED ANOTHER ECU ANY IDEAS WOULD BE GREATLEY RECIVED

 

Have you checked to see if the ecu is losing its ign live ?

Is the alternator charging ?

I've seen it before on other cars, not Fords though that if the ecu doesn't see 12volts then it will simply switch off.

 

have you tried the throttle sensor?

 

Hi Mate

i bet it's where the engine loom joins the car loom underneath the ecu

i bet the live wire is fooked

worth a try

marco

 

I HAVE CHECKED AND IT IS CHARGING FINE

 

Check what Marco mentioned, I have heard that mentioned before

 

alot of the 3dr and rs500's suffer from this thats mainly the problem

it's ok ticking over but once you try to rev it , it cuts out and starts back fireing and sometimes it would just cut out for no reason thats the problem i had anyway

martin found the problem for me


persoanlly for what it's worth i would just change the whole engine loom to a pectel engine loom or a dingy or ryan loom

at the end of the day the 3drs and rs500 are 20+ yrs old electrics start fooking up after 8yrs anyway

marco

 

I was going to mention just changing the loom

Sounds like its already had enough and one thing you dont want is a part of it failing when on full chat !

Hope its fixed for now though

 

I spliced a new piece into mine when it was all out and protected it with plastic when it went back in mate. See its up for sale? Am poss in your area end of the week??

Cheers,

Andy