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99 Ranger rough idle.

Ranger905

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Aug 4, 2011
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Hello.

I've been trying to figure out why this trucking is idling poorly. I've replaced cam sync and sensor, plugs and wires, and sea foamed it. She runs rough when cold but improves when warmed up.

I've attached a plot and freeze frane data with the hope on getting some tips on what to do next.

Thanks.
 

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