any comments?

[Garry]

Could use some comments on attached log ... especially the quartermile run beginning around frame 320 ... and the KR values in 2nd gear and up ...

[eboggs_jkvl]

A/F at 16 is going to mess up that engine. You're way too lean. That would be my observation

[Dirk Diggler]

Your commanded AFR at WOT is 16.58:1 this is not got and prolly where your KR is comming from please check your Properties in the tuner and make sure you are displaying you AFR in EITHER AFR or EQ ratio. My gues is you are looking at lambda which is the reverse of EQ Ratio and will soon blow your engine if you continue with this lean of an AFR

[Garry]

Stupid question: Where does the lean AFR come from? Here's the first run after doing the AutoVE tune ... (which turned up pretty much close around the 1.0 BEN)

[Dirk Diggler]

Stupid question: Where does the lean AFR come from? Here's the first run after doing the AutoVE tune ... (which turned up pretty much lose around the 1.0 BEN)


Your OLFA table isnt correct that is where the lean AFR is comming from and if you Autotuned it you can bet your dollars to cents you are reeally running 16.5 at WOT. Please check and change your properties if you are looking at your AFR/EQ ratios in lambda you will then see why your OLFA and PE vs RPM tables are wrong

[Garry]

Just went back through my older logs - it seems like some setting of the AutoVE config has caused AFR to go lean during WOT ... before I did the AutoVE tune, at anything like 67% and up TP, commanded AFR went down to 11.70 ... so what fields did I mess up at???

[Garry]

Must be something in here ...


Comparison summary: 10:32:30 pm, Monday Aug 28, 2006

Calibration comparison between original_20060730.tun and autove-first.tun.
*Values that differ by more than 0.000001% are considered different.


B0101 "Main VE Table" 2.8821 "Different from cell: 0,0 to cell: 18,19 inclusive."
B0103 "Backup VE Table" 2.8821 "Different from cell: 0,0 to cell: 8,19 inclusive."
B0701 "Catalytic Converter Protection Enable" N/A "CAL: Enable <-> ALT: Disable"
B3313 "DFCO Temp Enable" 84.4584 "CAL: -30.0 <-> ALT: 122.0"
B3618 "PE Modifier Based on RPM" 0.1000 "Different from row 0 to row 18 inclusive."
B3605 "Commanded Fuel When in Open Loop (Normal)" 0.2986 "Different from cell: 0,0 to cell: 16,18 inclusive."
B3801 "Long Term Fuel Trim Correction" N/A "CAL: Enable <-> ALT: Disable"
B4205 "Closed Loop Temp Enable" 49.1643 "Different from row 0 to row 18 inclusive."
B5914 "Spark Low-Octane Table" 25.2372 "Different from cell: 3,0 to cell: 28,24 inclusive."
C6002 "Engine DTC MIL Enablers" N/A "Different from row 1 to row 3 inclusive."
C2901 "MAF High Frequency Fail 1" -69.9951 "CAL: 14000.0 <-> ALT: 1.0"
C2902 "MAF High Frequency Fail 2" -69.9951 "CAL: 14000.0 <-> ALT: 1.0"
C2903 "MAF High Frequency Fail Limit" -0.0076 "CAL: 6.0 <-> ALT: 1.0"

[Dirk Diggler]

The Autove tutorial was written in EQ ratio/AFR your Tuner is displaying the units in lambda. To correct this please change the units to EQ ratio and re open you OLFA table or you PE vs RPM table and you will see exactly what i am reverring to

[Dirk Diggler]

Must be something in here ...


Comparison summary: 10:32:30 pm, Monday Aug 28, 2006

Calibration comparison between original_20060730.tun and autove-first.tun.
*Values that differ by more than 0.000001% are considered different.


B0101 "Main VE Table" 2.8821 "Different from cell: 0,0 to cell: 18,19 inclusive."
B0103 "Backup VE Table" 2.8821 "Different from cell: 0,0 to cell: 8,19 inclusive."
B0701 "Catalytic Converter Protection Enable" N/A "CAL: Enable <-> ALT: Disable"
B3313 "DFCO Temp Enable" 84.4584 "CAL: -30.0 <-> ALT: 122.0"
B3618 "PE Modifier Based on RPM" 0.1000 "Different from row 0 to row 18 inclusive."
B3605 "Commanded Fuel When in Open Loop (Normal)" 0.2986 "Different from cell: 0,0 to cell: 16,18 inclusive."
B3801 "Long Term Fuel Trim Correction" N/A "CAL: Enable <-> ALT: Disable"
B4205 "Closed Loop Temp Enable" 49.1643 "Different from row 0 to row 18 inclusive."
B5914 "Spark Low-Octane Table" 25.2372 "Different from cell: 3,0 to cell: 28,24 inclusive."
C6002 "Engine DTC MIL Enablers" N/A "Different from row 1 to row 3 inclusive."
C2901 "MAF High Frequency Fail 1" -69.9951 "CAL: 14000.0 <-> ALT: 1.0"
C2902 "MAF High Frequency Fail 2" -69.9951 "CAL: 14000.0 <-> ALT: 1.0"
C2903 "MAF High Frequency Fail Limit" -0.0076 "CAL: 6.0 <-> ALT: 1.0"


Its the units please change the untis

[Dirk Diggler]

In the tuner Edit ---> Properties and change Commanded Fuel Values to EQ ratio

[Garry]

So, in essence, I did a tune based on a wrong unit, and messed up everything ;) So how come the BEN values came out fine?

Guess I'm going to pull out the original tune again, then go through the AutoVE process again ...

[Dirk Diggler]

The ben values came out fine because the ben's are derived from ACTAUL/COMMANDED so if your commanded is 16.58 a ben o 1.0 means you are EXACTLY on 16.58

[Garry]

OK, found it -- B3605 was somehow inverted ... :( No wonder the car ran like sh@t after the tune ... and I see what happened: Tune was configured to use Lambda, so the EQ values went the wrong direction ... guess I'll do some more logg runs ...

Guess the AutoVE tutorial needs a fat line in front to set the units to either AFR or EQ, but NOT Lambda ... (or did I miss that somewhere?)

Btw, what about the other units - I notice the volumetric efficieny is not configured to be displayed as the default, but % of maximum, Injector flow rate is shown in Lbs/hour.

Tnx!

[Dirk Diggler]

Ve and IFR are fine lambda will cost you if you are thinking EQ Ratio