At WOT, in PE mode, open loop ... I am seeing a curious phenomenon.

I'm running SVO 42# injectors, pretty close to the limit, I see a bit over 17 milli seconds pulse width at 5800 - 6000 rpm, which makes 85% duty cycle.

No FMU, but I do have the fuel pressure set at 52psi, that's so I can set the injector constant up to 48#.

My left side O2 sensors are reporting readings of 200 mv
My right side O2 sensors are reporting readings of 900 mv

The injector pulse widths are about the same for each side, give or take.

BLMs are near enough to 128 for me, and at WOT they are 128 each, or sometimes 128/131

I have added 15% fuel via the PE table from 5200 rpm to 6400 rpm. The O2's on the right side responded by rising from 850 to 900 or so, the O2 sensors on the left side did not really change at all.

Hmmmm

Car runs good, new plugs, wires and opti, didn't pull any timing on the run.

Any thoughts??

thx

LWM