What If? $8D (1227727 ECM) for TBI

[dave w]

I got screwed up last night. There's only one injector driver so there's no way "alternating bank" is possible. The only thing to watch is firing on every DRP or every other DRP. You should be firing every DRP with the TBI system. Have you checked both memcals for this?

TBI on PFI... talk about extra fuel for the turbocharged apps.

The '427 PCM Memcal outputs 3.3 VDC for Cylinder Select, or I think it will. I will measure the '427 Memcal for the Cylinder Select voltage very soon. My hope is, I'll be able to "see" if every DRP is possible from a '427 Memcal.

dave w