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Vauxhall Corsa 1.2 SXI Petrol - Engine power problems

19K views 6 replies 4 participants last post by  Overtone  
The emissions light may be linked. If you've got an ignition problem which is always worse when cold and damp then a misfire will send unburnt fuel into the exhaust which will trigger the emissions light.

I'd begin with your plugs and coilpack. Take them out and inspect. Check the contact points on the coilpack and spray with a water dispersent (eg WD40). You can even try keeping the coilpack indoors overnight and see if it's any better in the morning.

As for poor quality supermarket fuel messing with fuel filters - I have my doubts he was seriously interested in helping you.