Pcm tune / where to begin

And you can’t just turn off traction control?

I don’t think pulling the ABS fuse would have that effect. If you disconnected the battery, that could reset the adaptive logic in the transmission.

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it had that effect for about two days.

two thousand one2001. butt dyno detected responsiveness and economy. just so happened that those two factors felt faster. it felt like the truck had more torque at low rpms.

it’sa 2001. can’t figure out what a cel is. yea all the lights came on

Sorry… CEL = check engine light, and thank you

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I can accept responsivness but not economy. You can’t “feel” fuel economy. This is coming from someone who spent over 20 years tuning shock absorbers for a major car manufacturer. You confirm fuel economy by measuring it.

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