Diagnostic test said misfire on 2,4,&6. Replaced spark plugs & wires. Then test said misfire on 6 so replaced coil packs. Still gives p0306 code, misfire on 6.

Asked by Mar 23, 2014 at 09:02 PM about the 2008 Kia Sportage EX V6 4WD

Question type: Maintenance & Repair

Have for vacuum leaks can't find any,
have put fuel cleaner with high
octane gas in it. Still when you give it
gas and then let up on it it stops
running. Need help please! What to
try next?

4 Answers

11,205

At least at this point it's isolated to cyl #6. Have you checked the injector? connections? I know you stated that you replaced a lot of the ignition system, but have you verified spark on #6?

Yes have done all, do you think it could have jumped time?

11,205

I would think there would be a lot more codes if it jumped time. Have you performed a compression test?

Gonna do that in the morning

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