Engine Tunes/Mods
Hello everyone, looking for some advice. or HELP!!!! Please. I working on a engine swap. I have a 2007 Trailblazer 4.2. I purchased A 4.2 out of a 2008 Trailblazer. Swap went fine Switched manifold, Intake, I believe cam sensor,(front rt. side) Crank Sensor (lower Lf. side) plugs were different...