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1997 Jeep Wrangler Trouble code P0300, multiple misfiring

GOSAND3

MEMBER
1997 JEEP WRANGLER
6 CYL
4WD
MANUAL
94,875 MILES

Have had frequent recurrence of Check Engine light, with codes of P0300, P0302, P0305. At least once have had ONLY P0300, multiple misfiring. Have NEVER any indication of an actual misfiring, by sound or feel.

Thursday, September 2nd, 2010 AT 6:49 PM

1 Reply

MMPRINCE4000

MECHANIC
8,548 POSTS

I would change plugs with original equipment units, clear all codes.

If problem persists it is a possible PCM problem.

Have dealer or trusted garage measure spark output.

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Friday, September 3rd, 2010 AT 7:27 AM

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