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Big Injector Question

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Old 06-04-2013, 04:06 PM
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Originally Posted by doc350
check your decel fuel cutoff tables. normally the truck should cut fuel completely during decel and you will see your afr go lean. some tuners change these settings to get rid of the popping that can occur when this happens.
I have DFCO turned off at the moment for tuning.

I just went to COS5 2bar OLSD and I'm having the same issue. It's going rich on decel so my low MAP (20-35kPa) columns in the VE table are getting the shaft when I apply the correction factor from my wideband.
Old 06-04-2013, 08:37 PM
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I ended up making B9012, B4003, and B4004 all zeros to try to achieve a lower minimum pulsewidth. It helped a little but it's still rich on decel ~1200rpm. The next thing would be to knock down the min pulse adjust which adds pulse width if under 2.5ms is commanded.
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