Ok so here is the beast I have to tame. I have a customer with a nice custom roadster with a 2008 HHR 2.0 LNF installed in it. To control it a ECU from 2011 Buick Regal CXL 2.0 LHU and harness. Also updated are the Boost pressure sensor, MAP sensor, MAF sensor and O2 for correct 2011 Regal. I have a few problems with it running cleanly, never closed loop, O2 goes to 0. Idle is eratic etc. Even if I spray the throttle plate still goes to 0. Have only limited experience with Eco-tech tunes and had a little help with this one. Attached is the file and a pic of the truck if I can get it on here. Please view and ideas?