Looks like I've run out of injector
#22
Mine stays in the mid 14's at cruise.
Rick
#24
At cruise I am 14.9 or so with 32*. I'm still working on it though. I believe if I got the timing around 28 it would feel better w/o going out of lockup. I just started tuning myself, so it's a slow process...lol
#28
He said it fluctuates but for the most part at wot its around 20 degrees. He said that there's many variables that effect it so it's not going to be dead set at that timing. You may want to contact a tuner and let him explain it to you because I am mildly retarded!
#30
what you're seeing in the idc percentage is what the ecm is commanding the injectors to do. this does not mean they actually are doing it. watch the wideband once it gets past 90% if the afr stays the same all the way up to 105. you're on the edge of needing the bigger injectors and pump.
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Mossyoakglock
GMT 900 Trucks General Discussion
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Jul 17, 2015 08:30 AM








