OBDII reads car as Ford Explorer, engine runs rough

Asked by Michael Dec 27, 2016 at 09:59 AM about the 1998 Lincoln Navigator 4WD

Question type: Maintenance & Repair

I have a problem with my Navigator I'm currently restoring.
Mechanic has replaced coils and sparkplugs, and since then the car runs rough when revving (idle is reasonable, but the engine/car vibrates)
When he connected the computer it recognizes the car as a Ford Explorer, and not a Lincoln Navigator?
There are no fault codes in the computer for misfire etc, only a ABS fault (Master Cylinder needs to be exchanged, waiting for new part).
Anyone have any idea's to the computer reading the car as a explorer and the rough running of the car while no fault codes.
Do I need to reset the computer somehow so it learns the new sparkplugs and coils?

189,395

Paul answered 7 years ago

Bad or shorted wires, wrong plugs, plugged not gapped correctly.

2 people found this helpful.

Mark helpful

Michael answered 7 years ago

plugs are correct for the model and should be properly pre-gapped, but I can always buy different ones. I would have to ask the mechanic if he checked proper gap-distance. Any idea about the computer showing it's a Ford Explorer and not a Lincoln Navigator? Could that cause issues too (software wise I mean) or is that normal.

Mark helpful

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OBDII reads car as Ford Explorer, engine runs rough

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OBDII reads car as Ford Explorer, engine runs rough

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