2018 L83 dialing in MAF issues

Having issue dialing in the MAF - i'm using the AEM 30-0334 OBD2 wideband.
setting up the HP tunner's with the following


engine, fuel, cutoff. DFCO
deceleration fuel cutoff, enable rpm 980. disable rpm 875


engine, fuel, temp control
disabled COT - should be disabled

engine, fuel, oxy sensors
monitoring - o2 reediness volt -ve

engine, airflow, dynamic
dynamic airflow - high rpm disable 100
dynamic airflow - high rpm re-enable 99

engine, spark, advance
base - high octane - subtracted 5 dgree
base - high octane dp - subtracted 5 dgree
base - low octane - subtracted 5 dgree

my reading are all over the place, even after dialing in by multiplying the EQ error ratio (%) to my Mass Airflow Frequency.
Here's my log file, any insight would be appreciated.

The Gen V has different parameter's for calculating AFR. Someone correct me if I'm wrong, but the gen, V Silverado's is tuned off of torque reading and that calculates the engine parameters. I have been having difficulty with this as well.

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Originally Posted by Bal Deo

Having issue dialing in the MAF - i'm using the AEM 30-0334 OBD2 wideband.
setting up the HP tunner's with the following


engine, fuel, cutoff. DFCO
deceleration fuel cutoff, enable rpm 980. disable rpm 875


engine, fuel, temp control
disabled COT - should be disabled

engine, fuel, oxy sensors
monitoring - o2 reediness volt -ve

engine, airflow, dynamic
dynamic airflow - high rpm disable 100
dynamic airflow - high rpm re-enable 99

engine, spark, advance
base - high octane - subtracted 5 dgree
base - high octane dp - subtracted 5 dgree
base - low octane - subtracted 5 dgree

my reading are all over the place, even after dialing in by multiplying the EQ error ratio (%) to my Mass Airflow Frequency.
Here's my log file, any insight would be appreciated.

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Did you figure this out? I?m having the same issue.

Make sure you're in open loop. I have to manually disable closed loop in VCM Scanner Special Functions. Even then sometimes it will force closed loop and mess up my scan.

post a tune so we can help you!!!

Quote:

---

Originally Posted by Bal Deo

Having issue dialing in the MAF - i'm using the AEM 30-0334 OBD2 wideband.
setting up the HP tunner's with the following


engine, fuel, cutoff. DFCO
deceleration fuel cutoff, enable rpm 980. disable rpm 875


engine, fuel, temp control
disabled COT - should be disabled

engine, fuel, oxy sensors
monitoring - o2 reediness volt -ve

engine, airflow, dynamic
dynamic airflow - high rpm disable 100
dynamic airflow - high rpm re-enable 99

engine, spark, advance
base - high octane - subtracted 5 dgree
base - high octane dp - subtracted 5 dgree
base - low octane - subtracted 5 dgree

my reading are all over the place, even after dialing in by multiplying the EQ error ratio (%) to my Mass Airflow Frequency.
Here's my log file, any insight would be appreciated.

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its because you didnt force it into open loop chang your dfco enable rpm to 8100 and disable rpm to 8099 then set your o2 readiness -1795 or whatever number you have there and dont forget to set your ltft min ect to max value it should be 492F and your ltft max ect to -30 .

this should force you in open loop for now until you finish tuning your maf and ve dont forget to set back the stock values after you have finished tuning or else you will be in open loop all the time hope that solved your problem