I bought an APS GTO M6 with a crappy tune, (I know who did the tuning). It has the 2bar enhanced os I need to know how to properly do away with the MAF to run only SD, or should I?. Injector IFR is set Don't have any other injector specs, RC injector doesn't provide them. Return fuel system with boost referenced regulator. set at 43.5 psi base with vacuum unplugged. I have a lean condition up to 3600 rpm above 105kpa then goes into pe all the sudden. All pe delays are all but 0. Above this all is good. I'm thinking it's still looking at the MAF but don't know. Any help would be appreciated.