how can i fix a miss fire?

my vauxhall zafira 1.6 gets to 30 mph after a few mins
it will miss fire now and again just for a second or to enough
to jerk the car. ihave changed the fuel filter and spark plugs
richard.price7@tesco.net, June 2005


done
did you check the coolant sensor should be around 2.2v on it if working correctly have seen it around 4.5v faulty

tom, January 2010
Will need to isolate the skip to which cylinder and go from that ........other wise your ghost chasing the skip....sometimes when you replace the plugs with a skip you proably fixed the skip but after car has been run with bad plug the fire to the plug has nowher to go and can take out the coil pack and ingnition module.

bg, November 2005
mike no leads on zafira coilpack only

jonathan ward, September 2005
ive got same problem zafira 1600 club changed fuel filter plugs leads still misfires at 2500 3000 revs just when your going slow doing my head in

jonathan ward, August 2005
What about the leads and the air filter?

Mike, June 2005
link Click here to see other fixes for Vauxhall Zafira.