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99 Ranger rough idle.


Ranger905

New Member
Joined
Aug 4, 2011
Messages
1
Transmission
Automatic
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.
 

Attachments

  • O2 Sensor Plot 1.JPG
    O2 Sensor Plot 1.JPG
    44.4 KB · Views: 223
  • Data 1.JPG
    Data 1.JPG
    137.9 KB · Views: 233

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