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pete c · 12-05-2011, 07:24 PM

I have a '97 Ranger with the 3.slow V-6 and 5 speed.

If I am not mistaken, that means it is ODB2. i seem to recall reading somewhere that all ODB2 engines use FI cutout when coasting in gear.

Am I correct?

I ask because my Ranger sure as hell does not implement it.

I can be coasting down a hill, in gear, with the engine well above idle speed and shut down the ignition with a very definite difference in engine drag.

If the engine was using FICO, this would not be the case.

I have read other threads here about wiring in a manual FICO switch.

Is this a good idea? Will I open other cans of worms in doing so?

12-05-2011, 07:24 PM	#1 (permalink)
pete c Master EcoModder Join Date: Oct 2011 Location: ellington, ct Posts: 830 Thanks: 44 Thanked 104 Times in 80 Posts	ODB2 question I have a '97 Ranger with the 3.slow V-6 and 5 speed. If I am not mistaken, that means it is ODB2. i seem to recall reading somewhere that all ODB2 engines use FI cutout when coasting in gear. Am I correct? I ask because my Ranger sure as hell does not implement it. I can be coasting down a hill, in gear, with the engine well above idle speed and shut down the ignition with a very definite difference in engine drag. If the engine was using FICO, this would not be the case. I have read other threads here about wiring in a manual FICO switch. Is this a good idea? Will I open other cans of worms in doing so?