This harness and computer are for a stock or nearly stock 2.5L LCV Direct Injection Ecotec. I.E. stock injectors and stock throttle body. We use a blend of speed density and MAF tuning, so this setup requires a MAF sensor and does utilize the upstream O2. The controller is an OEM E39 and includes a performance tune based off of hundreds of dyno hours. Custom E85 and Race Gas tunes are available for an additional fee.
This system will work with all 2.5L LCV Ecotecs running the 58x reluctor wheel individual coil packs and drive by wire throttle body. Our system requires the use of our pedal. It comes with a full diagram and labels all connectors.
All harness combos' are BUILT TO ORDER. Typical lead time is 2-3 weeks. With COVID those lead times can vary. Please call ahead to check inventory/lead time.
NOT ELECTRICAL BUT CRITICAL: BE SURE TO PURGE ALL AIR FROM THE COOLING SYSTEM! MORE THAN ONE ENGINE HAS BEEN LOST DUE TO CAVITATING WATER PUMP.