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98 Civic EX Mysterious Miss


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I am having a problem locating the cause of this miss.

1st Engine Code said Evap Leak

2nd Code Said miss on Cylinder 4

While driving the tach just drops off and then right back up almost like I hit a bump and it goes right back up ,at first it was intermittent, now it is anytime I drive, and the little dip on the tach goes from a little dip to bounce around like a geiger meter.It is not as bad when I keep the revs up or down shift ,but today it was so bad it was jerking the car like if your coming to a stop in to high a gear.

So far I have installed nw plugs and fuel injectors due to it smelling like it was leaning out.

Does anyone have a clue as to what is causing this.

98 Honda Civic EX

Manual w/ a Cold Air Intake

No other Mods

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Tried to video the tach as it jumped around today ,but of course as soon as I turned the camera on it stop and ran smooth.

But I did call King Motorsports in New Berlin WI. and got a firm an definate " It's your ICM" so tomoro I pick up a new distributor and for those interested I will let you know if it worked.

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