TB Error Code (!)
Never a dull moment. New fuel regulator and step up larger injectors solved the lean condition at higher RPMs, but then discovered that she turns herself off after any WOT pull. Not during the pull, just when you release the throttle. We’ve tracked this down do an uncommon but well documented TB error code issue. Most commonly seen with the TBs in the GMPP crate engines - rarely seen in a factory C6ZR1. So, new TB is on the way. We are cautiously optimistic this will have her happy. Then I can wake up, flip the garage lights on, and not see that lonely, empty bay any more!!!
Will post final dyno #s with LPE pulley and snout as soon as I have them.
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