sierra sapphire boost problem

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25-11-2007, 03:35 PM

scott_j166

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sierra sapphire boost problem

the car runs fine then when its starting to boost it misfires the plugs,leads,coil,distributor cap and arm have been changed and still the same any ideas??cheers

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25-11-2007, 03:48 PM

mechanic28

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mine dones this turned out to be the phase sensor make sure all the wires are ok on it the insulation has not cracked etc

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26-11-2007, 04:45 AM

stevecossy

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As above and also check ya plug gap is not too big. Mine did that on std gap so reduced it to 0.6mm and was fine.

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26-11-2007, 06:28 PM

Paul_RS

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I had a missfire - turned out to be crap in the engine loom multiplug.

On my mates car, it was a duff actuator.

Bit of a mindfield this mate

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