Evening All,
How do you all verify Wideband data?.
On my LT1 I've installed a dual Zeitronix WB gauge, so i can log & monitor both banks.
mild cam 383 LT1 in Speed Density, 16188051pcm $EE
I'd noticed upon reviewing the datalog the LH side was more unstable & contains a lot more lean spikes in Closed Loop.
I suspected a manifold leak (had the gaskets sucked in previously) rather than a miss as the car drives pretty well.
LHS is actually reading RICH
I was playing with the controls in Steveo's EEHack and switched it to run 14.7 AFR Open Loop.
Both sides smoothed out but were around 12.6 & 13.8 AFR (about 1 to 1.5 AFR apart). Idle BLM's had been running previously at 115 which might explain the extra richness.
I've also pulled 4% out the LHS idle fuel adders to balance the BLM's up.
My WOT data logs are also recording about the same 1 - 1.5 AFR Difference which rules out a vacuum leak.
Narrow band BLM trims show a variation of 1 or 2 points between rich and lean sides
Any thoughts or ideas?
TIA
Mitch
Bookmarks