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    ford focus 1.8 petrol year 2000 Archived Message

    Posted by neil cawte on July 29, 2008, 8:49 pm

    hi another job i wish i had not taken on been to several main dealers this vehicle drives ok if you are smooth on the gas ,if you floor it , and you can also do this in workshop it gasps like mad just like a blocked exhaust, or fuel pump failure. no codes of course and autodiagnose wont even coms with it.however fuel pressure when floored is 4.0bar delivery = 2 litres/min, no excess pressure in exhaust when engine is gasping by holding throttle wide open it has inj duration of 17ms, lambda pegged at o.9volts .the only way to change the way it performs is remove the air mass plug and it will rev out . it has had stacks of parts fitted by previous people new ecu ,airmass. tps. vss, cps, cam phase, etc anyone had similar situation also longterm is -8% and short term +2%

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