well this problem is really getting to me now,
rite the problem is when i pull out of a junction i lose power then decides to kick back in,it dosent stall just lack of power rite the bits ive changed.

ive changed all plugs and leads
idle control valve
and coil.

the car is a 1.8 16v xr2i

any ideas i could try please help me

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colapsed/blocked cat m8 very common problem on the zetec'ed fiestas/escorts

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ive got a magnex de-cat pipe on so cant see it being cat

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doesthis happen when you have your foot down and not just normal day to day little throttle effort

it happens just normal,day to day little throttle effort

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From the symtoms, i'd say cam sensor.

But from the "every day bit" i'd be more inclined to think Crank sensor

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Some people are like slinkies. Not really good for anything, but bring a smile to your face when pushed down the stairs!

From the moment I picked up your book until I laid it down, I was convulsed with laughter. Some day I intend reading it.

could be anythin more than likely theres a fueling problem but if i were you insted of spending all your money on parts thats dont cure the problem could go towards a diagnostic test you could say its cam sensor crankshaft sensor, book it in at a garge and get it tested