AutoVE how to for the LS2 E40 PCM using EfiLives AutoVE tutorial

[Gelf VXR]

Link to pdf Auto VE & Spark Tutorial

https://onedrive.live.com/?cid=AA511...943BEA515F!122

[Gelf VXR]

AutoVE how to for the LS2 E40 PCM using EfiLives AutoVE tutorial

Select PIDs for AutoVE

Note the following

4. In addition I select up to the maximum of 24 channels

GM.INVLVTMP_DMA Used in open loop commanded fuel maps

You must locate calc_link.txt file in C:\Program Files\EFILive\V7.5\Configuration and change in the E40 section Open Loop Fuel IVT Multiplier

B0141.COL=GM.INVLVTMP_DMA

B0146.ROW=GM.INVLVTMP_DMA


GM.APCYL_E40_DMA Grams per cylinder, used in Spark Advance maps

SAE.BARO Not much use except to record atmosperic pressure on the day

GM.ETCTP Used in PE maps

GM.KR Actual knock from sensor

GM.KNRETFinal knock retard applied, includes GM.KR and burst knock {B1914}

The following two pids can be selected in addition to varify the changes made to the AutoVE tune after uploading to the PCM.

SAE.FUELSYS (monitors)

STATUS A and STATUS B (bank 1, bank 2) = OPEN LOOP / CLOSED LOOP

and

GM.FSST (monitors)

FSST-SFPO SECONDARY FUEL PUMP ON = YES / NO
FSST-PEA POWER ENRICHMENT ACTIVE = YES / NO
FSST-HCEA HOT COOLANT ENRICHMENT ACTIVE = YES /NO
FSST-FTLA FUEL TRIM LEARN ENABLED = YES / NO
FSST-FPO FUEL PUMP ON = YES /NO
FSST-FCLA FUEL CLOSED LOOP ACTIVE = YES/NO
FSST-DFCOA DECEL FUEL CUT OFF ACTIVE = YES / NO
FSST-CPA CAT PROTECTION ACTIVE = YES / NO


Create an AutoVE MAP


Note the following

8. Select Engine RPM from the parameters drop down list

10. Open calibration {B0200} Main VE table

11. The following labels should appear in the Col labels field:

,400,800,1200,1600,2000,2400,2800,3200,3600,4000,4 400,4800,5200,5600,6000,6400,6800

13. Select Intake Manifold Pressure (kPa) from the parameter drop down list

14. The following labels should appear in the Row labels field:

,15,20.5,26.3,31.8,37.5,43.1,48.8,54.4,60.0,65.5,7 1.3,76.9,82.5,88.1,93.8,99.4,105


Repeat process for BEN_LC12. Is it possible with dual LC-1 to perform AutoVE on both banks at the same time, ie half the time to log AutoVE average the results from each side for GMVE


Set up Open Loop, Speed Density

Note the following

3. Open calibration MAIN VE TABLE {B0200} + 5% (for stock set up)

Open calibration MAX VE {B2030} + 5% (for stock set up)

4. Ignore

5. Open calibration {B2407} DFC0 temp enabled high and set to 256 º C (enabled below)

Open calibration {B2408} DFCO temp enabled low and set to 256 º C (enabled above)

Open calibration {B2403} DFCO airflow enabled high and set to 8192 RPM (enabled below)

Open calibration {B2404} DFCO airflow enabled low and set to 8192 RPM (enabled above)

6. Open calibration {B3618} PE Mode Commanded Fuel and set to desired AFR across the

board (EQ = 1.13)

7. Open calibration {B0146} Open Loop Inlet Valve Temp Multiplier for Open Loop Normal

Commanded Fuel in Gear and set the value of cells for all rows above 80 º C to 0.1 ensuring final

EQ value of 1 at temps above IVT 80 ºC. This probably isn’t necessary as when ECT ≈ 80 º C,

IVT ≈ 136 º C

8. Ignore

9. Ignore

10. Open calibration {B1508} Long Term Fuel Trim Coolant Enable above and set to 256 º C

Open calibration {B1509} Long Term Fuel Trim Coolant Disable above and set to - 40 º C

Open calibration {B1502} Engine Coolant Temp for Closed Loop and set all to 152 º C

Open calibration {B1504} Engine Coolant Temp for O2 Ready and set all to 256 º C

11. Ignore

12. Open calibration {B0804} Catalytic Converter Protection Enable and set to No

13. Ignore

14. Open calibration {C6002} and set {P0101} {P0102} {P0103} to No MIL

15. Open calibration {C0301} MAF Frequency High Fail and set to 0

Open calibration {C0302} MAF Frequency Low Fail and set to 0

16. Ignore

17. Ignore

18. Ignore

19. Ignore

20. Continue with instructions

[yellowC6ohio]

Awesome

[Ninety8C5]

The easiest way would be to go to the sae_generic.txt file and add '_B' to the GM.AFR info for the Tech Edge or whichever WB you are using.

C:\Program Files\EFILive\V7\Configuration\sae_generic.txt

# Tech Edge WBO2
# ========================
*CLC-00-916
V 0.0 5.0 .1 "{EXT.AD1}"
AFR 9.0 19.0 .1 "{EXT.AD1}*2+9"
*CLC-00-917
factor 0.0 2.0 .1 "{CALC.AFR_TE1.AFR}/{GM.AFR_B}"
*CLC-00-918
V 0.0 5.0 .1 "{EXT.AD2}"
AFR 9.0 19.0 .1 "{EXT.AD2}*2+9"
*CLC-00-919
factor 0.0 2.0 .1 "{CALC.AFR_TE2.AFR}/{GM.AFR_B}"

[Gelf VXR]

Thanks for your help

[Gelf VXR]

I have updated the how to. Tried something similar yesterday with out success, using fuel system status pid, you can log OPEN LOOP, OPEN LOOP DRIVE, CLOSED LOOP status. I was still operating closed loop...

I hadn't made the changes to B1502 to disable closed loop, I had thought MAF failure would have prevented CL? I will check DTC's again to check MAF failure is being monitored.

[mr.prick]

AutoVE how to for the LS2 E40 PCM using EfiLives AutoVE tutorial

Create an AutoVE MAP

Note the following

8. Select Engine RPM from the parameters drop down list

10. Open calibration {B0200} Main VE table

11. The following labels should appear in the Col labels field:

,400,800,1200,1600,2000,2400,2800,3200,3600,4000,4 400,4800,5200,5600,6000,6400,6800

13. Select Intake Manifold Pressure (kPa) from the parameter drop down list

14. The following labels should appear in the Col labels field:

,15, 20.5, 26.3, 31.8, 37.5, 43.1, 48.8, 54.4, 60.0, 65.5, 71.3, 76.9, 82.5, 88.1, 93.8, 99.4, 105


Repeat process for BEN_LC12. It is possible to logs BENS on both banks

Set up Open Loop, Speed Density

SPEED DENSITY TUNE

VE TABLE {B0200} + 10%

MAX VE {B2030} + 10%

DFC0 enabled below {B0247} set to -40

DFCO enabled above {B0248} set to 122

PE MODE {B3618} set to EQ 1 (14.63)

OPEN LOOP COMMANDED AFR: IVT MULTIPLYER {B0146}

COMMANDED FUELS MUST BE SET TO EQ NOT AFR (WILL NOT FUNCTION
CORRECTLY IN AFR)

Look down the columns labeled

65 kPa all values less than .11 to .104 (14.06)
70 kPa all values less than .11 to .108 (13.54)
75 kPa all values less than .12 to .112 (13.06)
80 - 100 kPa all values less than .12 to .113 (12.95)

LTFT MAP DISABLE below {B1510} set to 110 kPa

LTFT ENABLE above {B1508} set 122

LTFT DISABLE below {B1509} set to -40

CAT PROTECTION {B0804} set to no

MAF HIGH FAIL {C0301} set to 2

MAF LOW FAIL {C0302} set to 1

MAF HIGH FAILURES {C0303} set to 1

MAF LOW FAILURES {C0305} set to 1

COOLANT TEMP CLOSED LOOP ENABLE {B1502} change from

85.000000
80.000000
75.000000
65.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000
55.000000

All to 122

Save and upload, Don’t unplug MAF, start engine and check for DTC's to indicate MAF failure, any of P0101, P0102 and P0103. Clear DTC's. Return to SD tune set P0101, P0102 and P0103 to NO MIL, save and upload

why are we still told to set PE to 14.63?
personally i don`t want to be 14.63
at low kPa and high RPM. (high RPM deceleration or with any FI)
just my opinion of course.

[Gelf VXR]

why are we still told to set PE to 14.63?
personally i don`t want to be 14.63
at low kPa and high RPM. (high RPM deceleration or with any FI)
just my opinion of course.

I'm new to this, as far as i am aware there are two areas the PCM looks up to determine commanded AFR, PE and commanded open loop, which ever is the richest, is the AFR used. By setting PE to 14.63 means that it is ignored and the open loop map is used instead. How ever, I have been directed to an HP Tuners how to for the LS2 which says to set the open loop commanded AFR to EQ 1 and PE to your desired AFR.

http://www.ls1gto.com/forums/showthread.php?t=200339

http://www.thetuningdoctor.com/HPTun...uningGuide.doc

[mr.prick]

I'm new to this, as far as i am aware there are two areas the PCM looks up to determine commanded AFR, PE and commanded open loop, which ever is the richest, is the AFR used. By setting PE to 14.63 means that it is ignored and the open loop map is used instead. How ever, I have been directed to an HP Tuners how to for the LS2 which says to set the open loop commanded AFR to EQ 1 and PE to your desired AFR.

http://www.ls1gto.com/forums/showthread.php?t=200339

http://www.thetuningdoctor.com/HPTun...uningGuide.doc

read what i said as to WHY i would not set your PE to 14.63.
unless you are in the high MAP values you will be lean(er)
than you should be at higher RPM.
you don`t want to go road racing like this.

[Gelf VXR]

read what i said as to WHY i would not set your PE to 14.63.
unless you are in the high MAP values you will be lean(er)
than you should be at higher RPM.
you don`t want to go road racing like this.

Bear with with, I understand where you are coming from now, from the table below PE is enabled at increasingly lower TPS values as RPM increases above 3070 with higher EQ values, and where map values are low.

Setting the PE to EQ 1 means the engine will run dangerously lean in these conditions unless provisions are made in the open loop commanded multiplier IVT map. Hence Alternative how to sets the PE to EQ1.13 at all RPM's and commanded open loop to EQ 1, but doing that removes enrichment during cold start and warm up conditions.


RPM TPS PE EQ
0 47.961429 1.080078
510 47.961429 1.080078
1020 47.961429 1.080078
1530 47.961429 1.080078
2040 47.961429 1.080078
2560 47.961429 1.080078
3070 47.961429 1.099609
3580 27.99988 1.120117
4090 15.499879 1.169922
4600 14.498902 1.169922
5120 14.001466 1.219727
5630 10.998536 1.219727
6140 9.500123 1.219727
6650 7.998658 1.219727
7160 7.998658 1.219727
7680 7.998658 1.219727
8190 7.998658 1.219727

Sorry about the table, cant get it to seperate columns


This still leaves two options for setting commanded AFR, bearing in mind that in my recent logs GM.AFR_B reports the 14.7:1, the PE commanded value not the open loop commanded value, during cold start when i know it was commanding richer and was running richer. Could be related to the bug I reported earlier. The BEN value is derived from Actual AFR/GM.AFR_B.

Option A: (EfiLive) Set PE to EQ = 1 and set open loop map values less than EQ 1.13 to 1.13 (running rich in all conditions, engine protected under high rpm low kPa, smooth AFR transition under all conditions, not good for cats thou??)

Option B: (Alternative) Set PE to EQ = 1.13 and set open loop values to EQ =1 apart from where enrichment is taking place during warm up (enrichment during warm up, stoich under low TPS, RPM and MAP, variable AFR's) Could lower the TPS/RPM threshold so that PE is commanded for all conditions??

From what I remember smooth AFR transition is required for AutoVE??

Be gentle lol