Vectra missfire at mid revs - Pete R
Me again, I have a problem with my 2.0 LS vectra 1997.

The car seems to run fine except occasionally at around 3200 rpm it hesitates whilst accelerating. Could actually be misfiring, does it for about 2 seconds then seems to punch through and roars away.

Anyone ever had this before?
Vectra missfire at mid revs - Big Vern
Yep on a 98 1.8 GLS never been annoyed enough to get it looked at, but would be interested to know what it is.
Vectra missfire at mid revs - Pete R
If its any help, it seems to get worse when I have driven 20 miles or so and the engine is warm.

Thanks for any help
Vectra missfire at mid revs - Pete R
I thoght it might be problems with the plugs but they have been changed recently. Could the HT leads be a possibility?
Vectra missfire at mid revs - prm
Its worth trying your leads, or could be DIS pack.
Vectra missfire at mid revs - Pete R
Thanks, I have been struggling with idling problems for a while before this started. I pulled out the spark plugs and they were totally black. I scrubbed them with a wire brush and re-seated the HT leads.

Touch wood, the misfire hasn't happened since.

Phew

 

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