Howdy:

Have been very happy with 7194 and my truck, esp since dialing in fuel with the 93 octane tune. One odd thing...as our outside temps have been dropping, notice that the E-fans run MORE rather than less, despite having cut fan ops in the lower temp cells during summer after first installing ...

Mike:

Implemented minor tweaks to the first four (lowest temp) fan parameters, leaving the rest unchanged. Fans now work like stock in similar ambient (54F) to yesterday, so case closed. This is a fun tool to play with!

cheers,
Pat

Hello Mike:

Thanks to Diablosport for getting 8r07 up and running for u7194 on the code "C" 4.8liter motors. Installed the tune last night, drove a 200 mile city/highway mix trip today, starting with the 87 octane tune using 89 in the tank. (for safety)

Power noticeably improved and mileage seems ...

This is an awesome suggestion, but given the variety of vehicles and options out there, it might be too difficult to attain...... From a consumer's perspective, an equivalent result could be reached by what might be termed "active partnerships" with various companies specializing in the manufacture ...

Hello Mike:
Any news on 8r0x for this application? Cal ID's as follows:

Cal Id's for v.i.n. 1GTEC14CX7Z5*****:
Main OS 12614088
Sys Cal 12614220
Speed Cal 12614226
Fuel Sys Cal 12614277
Engine Diag 12616076
Engine OS 12616013
Engine Cal 12605899
Slave OS 12590068
(Last number not identified ...

Good Day.
I have 2007 new body style GMC Sierra with 4.8, auto, 3.73 from factory. Added are GM Perf dual cat back (dealer installed) and GM air intake kit (self installed).
Bought u7194 from local outlet about 1.5 months ago, and have waited until today to install s/w in my truck. Recently ...