[b]cosworth misfire [/b]
10-03-2005, 10:19 PM
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[b]cosworth misfire [/b]
my 2wd cossie has developed a misfire throughout the rev range and is running bloody rich seems like the engine is flooding cos as you try to drive it cuts out, all the timings ok and i have changed the phase senor in the dizzy someone help i am running out of ideas 
10-03-2005, 10:40 PM
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Is that when it's cold, warm or both ?
If only when warm, check the blue temp sensor at the back of the head, it could be telling the car's cold when it's actually warm, hence running richer.
Whereabouts are you in Berkshire m8 ? I might be able to pop round at the week end to help you out - I've had a fair few misfires with mine...
If only when warm, check the blue temp sensor at the back of the head, it could be telling the car's cold when it's actually warm, hence running richer.
Whereabouts are you in Berkshire m8 ? I might be able to pop round at the week end to help you out - I've had a fair few misfires with mine...
11-03-2005, 03:50 PM
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no good i have swapped the coolant sensor, air charge sensor and even put a 3 bar map sensor on it. problems still there also i cant seem to adjust the co on the ecu one of me mates has got a spare one i am going to try that see if it makes a difference will let you know m8.
12-03-2005, 10:59 AM
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Originally Posted by cpcossie
even put a 3 bar map sensor
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13-03-2005, 11:32 PM
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not 100% sure, 3 bar is usually only fitted to stage 3 cars.
If you have a 3 bar map sensor and a chip expects a 2 bar one, the chip will not interpret the map sensor readings properly and won't fuel the car as it should (amongst other things). It will either think the car is under more (or less - that's where I am not sure) than it actually is.
If you are not 100% sure what you are doing, give Mark Shead @ MADevelopments a call and see if you can book her in for him to have a look. He's in maindenhead so not far from slough.
He will most certainly sort your problem out, and it probably will cost you less in the long run.
His mobile number is: 07768 356204
If you have a 3 bar map sensor and a chip expects a 2 bar one, the chip will not interpret the map sensor readings properly and won't fuel the car as it should (amongst other things). It will either think the car is under more (or less - that's where I am not sure) than it actually is.
If you are not 100% sure what you are doing, give Mark Shead @ MADevelopments a call and see if you can book her in for him to have a look. He's in maindenhead so not far from slough.
He will most certainly sort your problem out, and it probably will cost you less in the long run.
His mobile number is: 07768 356204
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