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Discussion Starter · #1 ·
I just got this 4cyl 93mx6, and after it has warmed up about every 10-15 seconds it has a slight hickup...miss fire. As part of new to me car maintance I replaced the plugs, airfilter, oil-oil filter, cap and rotor, injector cleaner in gas ( driven about 50 miles so far). I will do a water test on the plug wires tonight with a spray bottle.
The worst problem is that the idle slows way down when the a/c is on, almost to the point that it feels like it is going to this normal? What should I check?

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