OK, never mind……I pulled the fuse on the ECM under the hood to check it, and it was fine. Probably not a factor anyway. Got the Trinity hooked up again, making sure the plug was securely fastened. The unit was able to restore the original without a problem. I started the LMM and monitored for awhile ...

I have a Trinity T1000, latest update, which worked fine on my '07 Chevy 1500, 5.3. I restored the original tune before I traded for an '09 2500HD (LMM) Duramax. I went to options, found my '09 vehicle and tried to install the 60hp tune. All started out well and it proceeded to backup original. When ...

I've been using the Predator on my 2007 Silverado for a few years now and love what it does for my mileage AND performance. i've ordered a trinity for it but, now I'm interested in getting a 2011 Expedition EL Limited for the wife. We'll also use it to tow a 27 foot travel trailer. Although the 5.4L ...