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117 Posts
Hey guys, I have a jms chip with three programs. I am currently running program 1 which controls the tranny functions etc. Program 2 leans out the motor by 2% at WOT only. My question is: How can my car benefit/run better if I use program #2. Program #3 leans the air/fuel mixture out by 4%. What are the benefits? Chris Johnson set these numbers up according to my mods.
