I need someone with a stock truck (Stock tunes as well) with at least exhaust, to go out and run their truck with the map sensor in and map sensor unplugged. Im trying to trouble shoot poor performance. It runs like a dog and really strains to rap up to redline with the map plugged in, but with it, it runs like a champ. Smoke isnt a big deal but it smokes ok and really really runs! I need someone to try this out and see what their results are? If anybody else has any input that will also work!

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It almost acts like a good tune. I (wich will be arriving Tuesday)

 

that happened on my 94. replaced the map and all was good.

 

Yep. I had my map line disconnected at some point on my superduty. Getting it to 50mph was a joke...