9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
Good Morning Experts.
I have a 2010 9-3 Aero 2.0 with roughly 130k. The car was running great but had a minor miss fire at idle. I check the plugs, they looked a little old and I replaced them with the same Autolite double plat. that were in the car, and set the gap at 1mm. At...