[yomny]

Originally Posted by VitViper

Closed loop isn't of concern -- the problem you have is under load. VTC is cam timing. You need to log the situations where the issue crops up, and if it's intermittent, compare to what it looks like when everything is OK.

Actual AFR (wideband), cam timing, ignition timing (actual), load, manifold pressure just to name a few to start with.

So city driving isn't' closed loop? I know it isn't so simple, but im feeling the hesitation, bogging during mild acceleration not really when im going WOT.. but then again this is all going over my head. Anyway you'd be able to see one of my logs? Driving up a little expressway ramp, slight incline, I give it gas at low rpm's and bog.. of course, this isn't all the time, normally given this same scenario the car just pulls forward as boost is building, very progressively.


Thanks a lot for your help, this may not solve anything until my tuner checks stuff out but definitely helps see things from a different perspective.


Does close loop switch to open when under X load? I thought it was usually going WOT.