Thread: PCM Tuner
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Old 09-29-2020, 09:24 PM   #1 (permalink)
racprops
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Join Date: Oct 2009
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PCM Tuner

OK here is what I want to do:

GM in the 85 to 95 Chevy's had a hidden program called: Lean Burn Cruse/ Highway Mode where the PCM would smoothly lean the Air fuel mix to around 16/17 to 1 and give about an extra 10MPG.

I want to be able to do that with modern cars and trucks.

In my case a 1993 383 Chevy Van, a 2002 Ford Explorer 4.0 V6, a 03 Crown Vic 4.6 V8.

And perhaps add more ERG at the same time both making more MPG by displacing some of the incoming, cooling the incoming burn, and cutting pumping losses.

Any help here??

Rich

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