Misfire problem

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craigztoyz
Posts: 727
Joined: Fri Jan 18, 2008 3:19 pm
Car: lots of unique hot rods, and customs, with modern engines, and a good truck to pull the trailer.

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I posted this in the SR20de forum.

99 G20, misfiire problem

new plugs, wires, 2 of the injectors are new, and swapped their replacements around.

had the intake off 7 times in last 3 days.

looking for advice as to what might end the misfire. Really noticable in gear under throttle. Horrible shake, and misfire.

any good advice is appreciated

craig

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nametakennow
Posts: 10024
Joined: Sat Aug 24, 2002 4:14 pm
Car: '06 MINI Cooper S

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Is your intake secured properly? Could be a MAF issue.

Is your IACV clean?
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craigztoyz
Posts: 727
Joined: Fri Jan 18, 2008 3:19 pm
Car: lots of unique hot rods, and customs, with modern engines, and a good truck to pull the trailer.

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Looking at the Maf. Any other ideas are appreciated

Thanx
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3r1c
Posts: 92
Joined: Mon May 28, 2007 12:23 pm
Car: 93 Red S13 Hatchback

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Check your EGR Valve. I have the same problem with my 98 Sentra SE-R model. I ran through some Seafoam, and the next day the shake wasn't so bad. So it must be a dirty EGR valve.
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