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Vauxhall Astra 1.6 r reg miss fire?

We have a Vauxhal Astra 1.6 on a r reg with a constant miss fire, we have sent injetor fluid through, changed plugs ,leads, and coil pack ,petrol filter and now at wits end the enginemanagement light is off any ideas
kevin, July 2007
i would do a compression test this will show if you have a sticky valve,cracked piston ring etc if all this is ok check the fuel pressure as the pump or regulator could be faulty also check crank sensor(heat damage to cable!)good luck

mike gillespie, July 2007
link Click here to see other fixes for Vauxhall Astra 1.6.

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Vauxhall Astra 1.6 r reg miss fire?