help mgf missfire on a vvc 1.8

20

Asked by May 26, 2013 at 05:53 AM

Question type: Maintenance & Repair

i own an mgf 1.8 vvc developed a miss fire when i was driving it compression seams ok  just put in new plugs still miss fireing am going to replace coil pack and leads next 3 weeks could any one give any ideas as to what else it could be if this doesnt solve the issue

3 Answers

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have replaced coil pack plugs and leads now been told it might be camshaft sensor that controls the vvc help please

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You're definitely working your way through the ignition control system this way, but if it's not the coil, leads, plugs or compression then there's just three things left: cam position sensor, ECU and wiring. Alternatively you may be misdiagnosing a fuel fault as ignition misfriring, replace the fuel filter and check the fuel pressure.

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new fuel pump and filter was fitted so I think it is the cam sensor but I cant replace till I get paid

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