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Title: Cosworth wont start Post by Rev_Tech on Mar 23rd, 2006, 8:03pm I have a 24V Cosworth which belongs to my Brother it originally had the OD light flashing so he DROVE it into a garage in Newcastle to be fixed. it was rewired & checked out many times but no joy 1 year later I had it shipped to me in Milton keynes, I have re-wired it, had the ECU re vamped changed the Cam sensor, had it into Ford on there Diag checked The fuse boxes re checked everything & it wont start, it sparks & fuels first crank then nothing, I have put some serious hours into this can anyone with some serious knowledge point me to the man who can before insanity sets in. (PATS IS SHOWING NO FAULT) 1995 P Reg |
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Title: Re: Cosworth wont start Post by nuttyscorp on Mar 23rd, 2006, 8:21pm sounds like you put a lot of time and effort into this, so i wont go through the obvious. howiedintheplace, or savethenight will be the men to sort this out for you, they know the cosworths back to front. Russ |
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Title: Re: Cosworth wont start Post by Highlander on Mar 23rd, 2006, 9:54pm Could you let us know what you've tried to date? Dont know how much youve looked into so sorry if you've tried these or they appear obvious..but this problem usually turns out something simple Try these Throttle position sensor Fuel cut off switch Is the petrol ok? maybe old stuff with water in it? tried a new battery? Battery the correct rating? try disconnecting it for a few minutes then reconnect to reset modules Check all the battery wires have been reconnected, theres a small one for the -ve side that often gets tucked under the battery when its replaced So Fords verdict was what exactly?? |
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Title: Re: Cosworth wont start Post by Rev_Tech on Mar 23rd, 2006, 10:34pm New front end harness, Fuse boxes, Cam sensor, crank sensor, Fuses relays ECU. I only let a mate at Ford Re-program the new ECU to get the keys programmed, it is 1996 car so dont want to spend a fortune on it so we did all the hard stuff. We are linked to the motor trade in electronics but not mechanics but know my way around a car my buddie has been doing most of the work he is a BMW mechanic with 30 years expeirence, everything checks out on tests it should run 1st crank shows correct signals then nothing, I sent the ECU back to Auto Tech yesterday & they have had a real good look at it today but it shows all good, I have used them for years & never had a problem. It should be back on Monday when I will try again, as a shot in the dark I will bypass the security system on Monday but I am certain thats okay. I feel like scrapping it but although old it is mint & just before it went pair shaped we did the cams & chains which was a pigs orphan of a job. My brother is disabled & he loves the car but I am at a loss the guys helping me are very expeirenced & we are stuck it makes no sense. I have a excellent wiring diagram which we have checked & doulble checked it is all good, fuel cut off is fine, tried the battery trick but I never had any hope of that working, thanks for your interest. |
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Title: Re: Cosworth wont start Post by martin_rowe on Mar 24th, 2006, 8:49am you say you have HT & fuel at cranking, does it fire or not, are the injectors pulsing to give fuel, do you have fuel pressure all the time, if you have HT try a squirt of diesel cold start to see if it fires, if so fuel is not there, if injectors not pulsing check back at the large multi plugs on the o/s inner wing, do all injectors have an ignition feed to them, the ecu provides earth pulse. loom accros front of engine & in the V have been known to caust these problems, crank & cam sensor wires run there as well, but if you have HT at least the crank sensor is working, check all the earth leads are on the battery also, in fact check this first. |
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Title: Re: Cosworth wont start Post by Dave on Mar 24th, 2006, 9:25am Have you changed all the fuses and relays in both boxes for new ones? |
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