I missed this earlier, might not be the whole issue but its something to watch.
Fuel pressure drops to 51PSI (from 58) on your hard pulls.
Do you have tuning for your fuel pump control module? (Assuming you have a Fuel pump control module like my Camaro).
Be interesting to see the difference in logs with this, I would not do WOT til your wideband arrives
Last edited by dhoagland; 3 Days Ago at 01:10 AM. Reason: Added Comment
2011 Camaro 2SS Convertible L99 Bone Stock for now
2003 Dodge 2500 5.9 Cummins QC 4x4. Airaid, 2nd Gen Intake, Grid Heater Delete, D-Tech 62/65/12, Magnaflow. Bully Dog: Propane Injection, Triple Dog W/Outlook Crazy Larry. Edge EZ, BD Flow-Max, 48RE: Sonnax Sure Cure/Transgo combination, Derale turbulator, billet input, Triple Disc, Super servo, 4 ring Accumulator. :beer
id assume so..there is a table to change commanded fuel pressureOriginally Posted by dhoagland
Yes
From my limited expearience, its more for when you add a booster pump and how that "spike" in pressure/flow is dealt with.
Might not be enough there to justify an addational credit, all of my tables were set to 58PSI. Next time you hook up click "gather information" and I believe it will show up, you dont have to read it.
There are tables for Duty Cycle and other things too that can be adjusted, but I believe its minor.
2011 Camaro 2SS Convertible L99 Bone Stock for now
2003 Dodge 2500 5.9 Cummins QC 4x4. Airaid, 2nd Gen Intake, Grid Heater Delete, D-Tech 62/65/12, Magnaflow. Bully Dog: Propane Injection, Triple Dog W/Outlook Crazy Larry. Edge EZ, BD Flow-Max, 48RE: Sonnax Sure Cure/Transgo combination, Derale turbulator, billet input, Triple Disc, Super servo, 4 ring Accumulator. :beer
This doesn't look lean at all. Fuel trims are averaging pretty close to zero. This is closer on fuel trims than most factory off the road cars.
That knock looks fake to me. There is no way it should be able to knock that hard with the timing already that low (appears to be in low octane mode)
Look for anything banging. I've had guys leave knock sensors loose (not torqued to spec) and the result is exactly like yours.
You won't be able to read plugs on a EFI car like a carbed car. without cutting the threads off a well tuned EFI car the plugs will appear white/lean.
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Fuel pump doesn't look like a problem either. They will fall a couple PSI.. much more than this it might can indicate a issue but you need to log fuel pump commanded DC and long and short term fuel pump trims to know the entire story. This isn't pressing though.
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Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs
Good news is the minor MAF adjustments logged exactly as expected, all now 2+ % rich...
Glad Alvin jumped in on this and seems to think the knock is false...
Once you get your wideband and confirm your PE WOT fueling you will be able to exclude that.
Keeps us posted
2011 Camaro 2SS Convertible L99 Bone Stock for now
2003 Dodge 2500 5.9 Cummins QC 4x4. Airaid, 2nd Gen Intake, Grid Heater Delete, D-Tech 62/65/12, Magnaflow. Bully Dog: Propane Injection, Triple Dog W/Outlook Crazy Larry. Edge EZ, BD Flow-Max, 48RE: Sonnax Sure Cure/Transgo combination, Derale turbulator, billet input, Triple Disc, Super servo, 4 ring Accumulator. :beer
throttle response seems to improved with this flash.
i did gather all the info from the modules and the control module for the pump does show up and is editable.
im gonna double check the knock sensor when i install the wideband..
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