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Thread: 7.4L vortec swap help

  1. #1
    Junior Member
    Join Date
    May 2010

    Default 7.4L vortec swap help

    Hello, I am new to the EFI Live and i have a truck we did a swap on that i need some tuning help on. the engine is a 98 7.4L vortec, we used the painless harness PN 60216 and PCM 16229684 out of a 97 truck. Its a 2 ton truck so basic reliable tuning is all it needs, the truck runs great until it goes into closed loop. (suspect due to we have no down stream O2 sensors) i can't seem to communicate with it using the EFI Live yet i can with my other scan tools. has anyone had trouble with this using a painless harness? also any tuning recommendations would be great. i am more of a diesel guy but i get roped into doing some gas work occasionally.

  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003


    Moolight, welcome to the forum...

    When you try to connect to truck using the EFILive scantool, copy/paste the text from the Console (F6) tab here.

  3. #3
    Junior Member
    Join Date
    May 2010


    this is the warning i get..(see attachment) Calibration missing??

    19:16:38.940: EFILive V7.5 Version V7.5.6 (Build 117)
    19:16:45.128: Ready.

    19:16:57.003: Scanning for EFILive FlashScan V2 USB
    19:16:57.018: Autodetect interface ...
    19:16:58.846: Interface not detected
    19:16:59.534: Scanning for EFILive FlashScan V2 HAPI
    19:16:59.549: Autodetect interface ...
    19:16:59.737: Interface firmware version: 2.6.35
    19:16:59.737: Connection to [FSV2] interface is OK
    19:16:59.768: CAN-VPW Bridge Activated
    19:16:59.846: Current protocol set to: "SAE J1850 VPW"
    19:16:59.846: Autodetect PCM...
    19:16:59.893: Connection to PCM is OK
    19:16:59.893: Autodetect TCM...
    19:17:00.456: TCM not detected.
    19:17:00.471: Current protocol: "SAE J1850 VPW"
    19:17:00.518: Interface firmware model: FSV2
    19:17:00.549: Interface firmware version: 2.6.35
    19:17:00.565: Interface firmware date: May 03, 2010
    19:17:00.596: FlashScan serial number: 003693817129
    19:17:00.612: FlashScan license number: 003693817129
    19:17:00.690: Request GM VIN...
    19:17:00.737: VIN: GM.ETCTPS2=None
    19:17:00.737: Request serial number...
    19:17:00.784: Request hardware number...
    19:17:00.784: Hardware: 0
    19:17:00.799: Request GM operating system...
    19:17:00.846: Operating System number could not be determined.
    19:17:00.846: Generating OS number based on VIN...
    19:17:00.862: Cannot generate OS number from VIN GM.ETCTPS2=xxxxxx
    19:17:00.862: GM operating system: 0
    19:17:00.878: Request GM NVM...
    19:17:00.924: Request GM Engine calibration...
    19:17:00.971: Request GM Engine diagnostics...
    19:17:01.018: Request GM Transmission calibration...
    19:17:01.065: Request GM Transmission diagnostics...
    19:17:01.112: Request GM Fuel system...
    19:17:01.159: Request GM System...
    19:17:01.206: Request GM Speedometer...
    19:17:01.253: Request GM BCC...
    19:17:01.284: Request GM VAT/IGN Cycles...
    19:17:01.331: GM VAT/IGN cycles: 0
    19:17:01.346: Request GM oil life...
    19:17:01.393: Query support for stream.01 scan mode...
    19:17:01.487: Query support for stream.02 scan mode...
    19:17:01.846: Calculating number of dynamic packet ID's...
    19:17:02.081: Loading generic configuration file: sae_generic.txt
    19:17:02.096: User defined calculated PIDs file: calc_pids.txt
    19:17:02.112: Enhanced configuration file:
    19:17:02.112: No enhanced parameters available for VIN: GM.ETCTPS2=None
    19:17:02.159: Request GM VIN...
    19:17:02.206: VIN: GM.ETCTPS2=None
    19:17:02.221: Request GM operating system...
    19:17:02.268: Operating System number could not be determined.
    19:17:02.284: Generating OS number based on VIN...
    19:17:02.299: Cannot generate OS number from VIN GM.ETCTPS2=xxxxxx
    19:17:02.299: GM operating system: 0
    19:17:02.331: Validating PIDs...
    19:17:02.362: Validating Modules...
    19:17:02.424: Initialising PIDs...
    19:17:02.534: Initialising Modules...
    19:17:02.549: Ready.
    Attached Images Attached Images

  4. #4
    Lifetime Member
    Join Date
    Aug 2006


    I don't think EFILive supports the 97 PCM, only the 98 and up. I think the 98-2000 Black Box PCMs need the V2 unit.

    98 GMC RCSB 2WD, Internally stock 305 w/Twin T-3 junkyard Turbos,4L80e,Ramjet intake,42lb.inj., 0411PCM, COS3,4675LBS w/me in it. Best Time on 5 passes-13.01@110

  5. #5
    Junior Member
    Join Date
    May 2010


    Ya its a 98 pcm, the manufacture date was 97 but i don't think the vortec was out until 98 model year.

  6. #6
    Lifetime Member
    Join Date
    May 2008


    I have a 97 vortec, so I do believe you may have a 97.


    230" Dragster - 2000 LS1, 02020003 Speed Density, PRC 2.5 Heads,
    MS3 Cam 237/242 .603/.609, Vic Jr. intake, Holley 1000CFM TB,
    PowerGlide, 5000 stall converter. 8.70@154 MPH

    My Projects Homepage:

  7. #7
    EFILive Developer Site Admin Blacky's Avatar
    Join Date
    Mar 2003


    Quote Originally Posted by Moonlight View Post
    19:17:00.690: Request GM VIN...
    19:17:00.737: VIN: GM.ETCTPS2=None
    That concerns me. The PCM is returning the data GM.ETCTPS2=None as the VIN. That is not correct and either indicates a problem with the installed EFILive software or a fault in the PCM.
    After trying to connect and getting the above message, generate an error report (menu: File->Generate error report), save the file and post it here.

    Before asking for help, please read this.

  8. #8
    Lifetime Member
    Join Date
    Aug 2006


    If your Black Box PCM has 5 connectors on it, then it is a 96 or 97 Vortec PCM. 98-2000 Black Box Vortec PCMs have 4 connectors.

    98 GMC RCSB 2WD, Internally stock 305 w/Twin T-3 junkyard Turbos,4L80e,Ramjet intake,42lb.inj., 0411PCM, COS3,4675LBS w/me in it. Best Time on 5 passes-13.01@110

  9. #9
    Junior Member
    Join Date
    May 2010


    Here is the error report. I just connected to a LB7 no problem so i suspect my equipment is ok.
    the PCM dose have 5 connectors and looks just like the image on the 98-00 vortec pcm. the painless harness dose not use the 5 pin plug.

    Thanks for your help.

    Error report generated by EFILive at 10:50:13 on May 31, 2010

    Error code: ERR_USERERROR/1
    User generated report.

    EFILive Version: 7.5.6 (Build 117)

    Platform: Windows XP
    Version: 5.1 (build 2600)
    Processor type: Pentium 2094MHz

    Temporary Cache: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Temporary cache
    Logged Data: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Logged data
    Customers: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Customers
    Configuration: C:\Program Files\EFILive\V7.5\Configuration
    Exported Data: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Exported data
    Images: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Images
    Sounds: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Sounds
    Maps: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Maps
    Pids: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\PIDs
    Virtual Dash: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\VDash
    Print Reports: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Print reports
    Bug Reports: C:\Documents and Settings\Administrator\My Documents\EFILive\V7.5\Bug reports

    Connected: Yes
    Com port: 0
    Com setup: EFILive FlashScan V2.5: USB
    Requested baud rate: 115200

    Cable id: 7
    Cable code: FlashScan V2
    Cable desc: EFILive FlashScan V2
    Cable version: 2.6.35
    Cable Firmware date: 20100503
    Cable model: FSV2
    Cable Serial number: 003693817129

    Protocols: 0
    Protocol list:

    Auto connect: No
    Scan OBDII info: No

    Error retries: 1
    Retry delay: 10
    Message throttle: 0

    Most recently used VIN: GM.ETCTPS2=xxxxxx (Note: 1)

    PCM information
    Hardware Number: Unknown
    Calibration ID: Unknown
    Serial Number: Unknown
    Operating System: Unknown
    Engine Calibration: Unknown
    Not used: Unknown
    Transmission Calibration: Unknown
    Not used: Unknown
    Fuel System: Unknown
    System: Unknown
    Speedometer: Unknown
    Operating System BCC: Unknown
    Stream-Slow scan mode: Unknown
    Stream-Fast scan mode: Unknown
    Maximum dynamic packets: Unknown

    Detected modules:

    Selected parameters:

    Most recent communication with vehicle:
    10:49:07.406 Send: $A1,$23,$00,$01,$00,$C5
    10:49:08.718 Send: $A1,$23,$00,$01,$00,$C5
    10:49:09.953 Send: $01,$54,$04,$86,$00,$00,$00,$00,$00,$00,$01,$00,$0 0,$90,$89
    10:49:10.093 Recv: $01,$52,$04,$86,$00,$00,$00,$00,$00,$00,$00,$00,$F C,$C9
    10:49:10.093 Send: $01,$54,$01,$82,$00,$00,$00,$00,$00,$00,$00,$00,$C 0,$91
    10:49:10.109 Recv: $01,$52,$01,$82,$00,$00,$00,$00,$00,$00,$05,$00,$4 6,$53,$56,$32,$00,$97,$B4
    10:49:10.109 Send: $01,$54,$05,$82,$00,$00,$00,$00,$00,$00,$04,$00,$0 6,$05,$07,$00,$7B,$14
    10:49:10.125 Recv: $01,$52,$05,$82,$00,$00,$01,$00,$00,$00,$04,$00,$0 0,$02,$06,$23,$5D,$D3
    10:49:10.140 Send: $01,$54,$84,$86,$00,$00,$00,$00,$00,$00,$01,$00,$0 1,$F8,$8B
    10:49:10.156 Recv: $01,$52,$84,$86,$00,$00,$01,$00,$00,$00,$00,$00,$F A,$F0
    10:49:10.156 Send: $01,$54,$01,$86,$00,$00,$00,$00,$00,$00,$01,$00,$0 1,$40,$85
    10:49:10.218 Recv: $01,$52,$01,$86,$00,$00,$32,$00,$00,$00,$01,$00,$0 1,$5B,$4E
    10:49:10.234 Send: $01,$54,$82,$86,$00,$00,$00,$00,$00,$00,$08,$00,$0 C,$6C,$10,$F1,$27,$02,$00,$00,$EE,$7C
    10:49:10.750 Send: $01,$54,$82,$86,$00,$00,$00,$00,$00,$00,$06,$00,$0 C,$6C,$10,$F1,$3C,$22,$1D,$4A
    10:49:10.781 Recv: $01,$52,$82,$86,$00,$00,$0F,$00,$00,$00,$09,$00,$6 C,$F1,$10,$7F,$3C,$22,$00,$00,$31,$EF,$DD
    10:49:10.796 Send: $01,$54,$82,$86,$00,$00,$00,$00,$00,$00,$08,$00,$0 C,$6C,$11,$F1,$27,$02,$00,$00,$EF,$AD
    10:49:11.312 Send: $01,$54,$82,$86,$00,$00,$00,$00,$00,$00,$06,$00,$0 C,$6C,$11,$F1,$3C,$22,$1C,$B6
    10:49:11.843 Send: $01,$54,$82,$86,$00,$00,$00,$00,$00,$00,$08,$00,$0 C,$6C,$18,$F1,$27,$02,$00,$00,$EF,$34
    10:49:12.359 Send: $01,$54,$82,$86,$00,$00,$00,$00,$00,$00,$06,$00,$0 C,$6C,$18,$F1,$3C,$22,$1F,$2A
    10:49:12.390 Recv: $01,$52,$82,$86,$00,$00,$0F,$00,$00,$00,$09,$00,$6 C,$F1,$18,$7F,$3C,$22,$00,$00,$31,$66,$1D
    10:49:12.390 Send: $01,$54,$04,$86,$00,$00,$00,$00,$00,$00,$01,$00,$0 0,$90,$89
    10:49:12.406 Recv: $01,$52,$04,$86,$00,$00,$00,$00,$00,$00,$00,$00,$F C,$C9
    10:49:12.406 Send: $01,$54,$01,$82,$00,$00,$00,$00,$00,$00,$00,$00,$C 0,$91
    10:49:12.437 Recv: $01,$52,$01,$82,$00,$00,$01,$00,$00,$00,$05,$00,$4 6,$53,$56,$32,$00,$93,$48
    10:49:12.437 Send: $01,$54,$05,$82,$00,$00,$00,$00,$00,$00,$04,$00,$0 6,$05,$07,$00,$7B,$14
    10:49:12.453 Recv: $01,$52,$05,$82,$00,$00,$01,$00,$00,$00,$04,$00,$0 0,$02,$06,$23,$5D,$D3
    10:49:12.468 Send: $01,$54,$06,$82,$00,$00,$00,$00,$00,$00,$00,$00,$7 1,$4B
    10:49:12.484 Recv: $01,$52,$06,$82,$00,$00,$01,$00,$00,$00,$03,$00,$0 A,$05,$03,$4A,$2E
    10:49:12.484 Send: $01,$54,$23,$83,$00,$00,$00,$00,$00,$00,$00,$00,$6 D,$A1
    10:49:12.515 Recv: $01,$52,$23,$83,$00,$00,$01,$00,$00,$00,$0D,$00,$3 0,$30,$33,$36,$39,$33,$38,$31,$37,$31,$32,$39,$00, $4E,$A8
    10:49:12.515 Send: $01,$54,$24,$83,$00,$00,$00,$00,$00,$00,$00,$00,$D C,$7B
    10:49:12.531 Recv: $01,$52,$24,$83,$00,$00,$01,$00,$00,$00,$0D,$00,$3 0,$30,$33,$36,$39,$33,$38,$31,$37,$31,$32,$39,$00, $28,$BE
    10:49:12.546 Send: $01,$54,$26,$83,$00,$00,$00,$00,$00,$00,$00,$00,$7 D,$B1
    10:49:12.562 Recv: $01,$52,$26,$83,$00,$00,$03,$00,$00,$00,$07,$00,$1 F,$14,$15,$01,$00,$3F,$00,$85,$86

    Report ID: 354140 (Note: 2)

    (1) The VIN sequence number is not required for this report and for your privacy it is NOT included in this report.

    (2)The report ID is a checksum of the report text and is used to verify the integrity of the report.

  10. #10
    Junior Member
    Join Date
    May 2010


    i was just looking on alldata and it is only showing 4 connector pinouts for 97 or 98 but 96 dose show a 5th connector but no pinout. is it possible that we need to look at this more? the truck runs fine without it.

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