Hi all, name's Matt. I live in central Arkansas. I have a 1988 C1500 Scottsdale 5.7/700R4 and a 1995 K1500 Silverado 5.7/4L60E. Ended up here from gmt400.com after needing to get some diagnostic help with TunerPro for my 1988. Stays in open loop unless driven really hard, at which time the MIL will eventually go out for a bit before the O2 cools back off. Hoping to figure out what's going on, but I'm now also interested in learning how to make some performance mods for both of my trucks.
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