How do you cure a vauxhall vectra v6 that misfires when you accelerate quickly?

Answer 1

I'm not too familiar with the vehicle you are speaking of, but many misfires can be cured with a tune-up. Set timing, change plugs, change cap and rotor, change fuel filter, check fuel pressure, clean carburator/ injectors. Also, try switching to a higher grade fuel, and shifting to a lower gear before accelerating. If this does not fix it, you may want to have closer diagnostics run on the engine itself. My Story. I had this accelerating / cruising mysterious misfire. Looked around all the forums etc for an answer. I did this: Cleaned, then changed Maf. New Dis-pack. Cleaned breather system. Luckily, I have a mobile oscilliscope and in my case, my crank sensor was 'breaking' down at anything above 2500rpm, whilst driving. standing still and reving everything seemed perfect. I had No Codes or EML light as the forums had suggested. I hope this helps some other V6 Vauxhalls rev cleanly again