Cossie problems

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Wed 28 Jan 2004 15:35
Cossie problems - Ohmaheid
Hi all, long story...My Sapphire Cosworth is suffering from lack of power and is backfiring through the exhaust. I have only had the car for a few weeks, and it was running beautifully initially. It first developed the symptoms on the way into the main ford dealers for its 60,000 ml service, and by the time I had reached the garage, a journey of 35 miles the car was really struggling - not accelerating, loss of power,running roughly, etc. When I went to pick it up they told me that they hadn't time to fix the problem and I would have to book it in another day. They did, however, say that the turbo was alright. After the 35ml journey home again I was really toiling (the problem seems to get worse the as the journey goes on) and I was reluctant to risk running the car back to them again. I took the car to a local garage,who couldn't find anything much wrong, apart from a rusty fuel tank which was leaking and subsequently replaced. The symptoms I have now is that the car starts and ticks over ok, but won't accelerate above 3000 rpm and backfires through the exhaust if you do push the pedal down. The local garages aren't too keen to look at to the car - they seem to be very apprehensive of a cossie and I was wondering if any one has knowledge of a similar problem.
The car is unmodded and a red top, converted for unleaded. Thanks for any help.
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Wed 28 Jan 2004 15:52
Cossie problems - helicopter
You might try asking on www.rsownersclub.co.uk.
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Thu 29 Jan 2004 09:31
Cossie problems - owen
If the garage couldn't find anything wrong, then i'd be inclined to think that it's either the ECU (has it got one?) or one of the sensors providing a dodgy signal to the ECU. Sounds like it could be running too rich, which may indicate a coolant temp sensor being dodgy. You really need to get some more specialised help though.
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Thu 29 Jan 2004 21:25
Cossie problems - Andrew Moorey (Tune-Up)
Check the vaccum pipe to the MAP sensor on the inner wing close to the throttle body. If this is holed then it will upset the ignition timing, it wont advance properly plus it will overfuel. The system is very simple and even the most basic code reader will pick out trouble codes but note that the ecu has no memory for faults and will not store them once switched off.
Andrew


Simplicate and add lightness!!
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Thu 29 Jan 2004 21:54
Cossie problems - Civic8
Agree with andrew on this.Have you checked rotor arm a hairline split will do that.causing rotor to jump on cam drive.

Just a thought
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Sat 31 Jan 2004 22:39
Cossie problems - DL
The turbocharged engine in the Cosworth likes the 'proper' spark plugs - were these changed?
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