396V8

Hi all

just for interest...

When i lock the BLM and INT to 128, are there still corrections made, when the ecm switches from open to closed Loop?

ECM 727, $8D

or is this "closed Loop with open Loop values and no corrections"

thank you

RBob

iTrader: (1)

The proportional gains are still active. With the short and long term fuel trims being locked in place (INT & BLM).

RBob.

396V8

hi RBob

does this mean, that corrections to the VE tables (fueling over all)are still applied?

thanks

RBob

iTrader: (1)

The proportional gains are used to force the AFR to oscillate.

There won't be any fueling corrections as the INT & BLM are locked at 128.

RBob.

Dominic Sorresso

I do this when dyno tuning
for WOT or running at the track.

396V8

thanks!

so, this would be a form of closed "open loop" only difference would be the closed/open loo flag in Datamaster?

anyway, this is as i said, just for interest...

it seems, i cannot make the engine happy in closed loop, will try open now!

Mapleleafs98

Could be your O2 sensor isn't hot enough, do you have a heated O2? headers?

396V8

Hi

yes, have a heated O2...i think my cam is screwing off the "tune"....