Code 48 - Stepper Motor - Idle control - fix
The stepper motor is the idle speed control device that is screwed into the left rear of the intake plenum - as you face the engine. I removed it and briefly sprayed carb cleaner into the business side of it - past the seat and spring. This was followed up by setting it on end and spraying it full of WD40, letting it sit for a bit. After refitting it with a makeshift gasket and a few drops of blue-medium- Locktite, short of the first start-up, it has worked flawlessly….knock on wood.
I believe that little bugger cost approximately $150.00!
94D90 NAS 3.9 LT77 LT230T Soft Top
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