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Thread: TBI tuning

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  1. #1
    Fuel Injected!
    Join Date
    Jan 2017
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    29

    TBI tuning

    Hello, glad to find this site. Bought my 95 gmc new and drove it 419500 miles before loosing oil pressure. Pulled 305 and installed 350 L31r vortec w/ lunati 20080660 cam, edelbrock 2716 vortec to carb manifold with throttle body from SPR bored to 46 mm, headers to 3in exhaust and the custom chip kit from Harris performance.I've been having trouble w/ tuning and I hope to get right with the help on this site.

  2. #2
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,322
    Most members, including myself, use TunerPro RT to tune TBI. ... TunerPro RT can be configured for Wide Band O2 Sensor (WBO2) tuning, see attached screen shot. ... WBO2 Tuning is how I would tune your TBI engine ... dave w

  3. #3
    Fuel Injected!
    Join Date
    Oct 2013
    Posts
    735
    419500 miles is impressive. You new combo should be quite an improvement. Unfortunately, TBIChips has been known to supply this type of upgrade with chips that don't work which sours the person on the EFI system being any good. So, it's a bit of a learning curve but get an emulator on it with TunerproRT and you'll get it right.

  4. #4
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    29
    Thanks guys, I bought the cable and went to tunerpro,download RT, registered and I'm getting nothing on the computer ,hardware not found and XDF file invalid. I watch the tutorial on YouTube and I'm not totally computer illiterate but I must be missing that one button or that one file exchange can anyone direct me to the right direction.

  5. #5
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
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    3,322
    Did you install the USB Cable driver? ... Here is the link for the USB Cable driver ... http://www.moates.net/usb-driver-p-215.html?cPath=78 ... When I install the driver, I plug my USB Cable into the laptop and run the CDM20824_Setup.exe file directly from the website. Sometimes I have run the CDM20824_Setup.exe a second time. ... You will need to configure the "COM PORT" after installing the driver. ... dave w

  6. #6
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    29
    I downloaded cd and got a com port 3 and I'm not sure where to go from here, still want find hardware on tunerpro rt. I'm running windows 8, could that be the problem?

  7. #7
    Fuel Injected!
    Join Date
    Dec 2012
    Location
    Naches, WA
    Age
    70
    Posts
    33
    Try this as windows 8 is not the problem. Open TunerPro, Tools, Preferences, Data Act./Emulation tab and key on Configure Plug-in Component and set to comport 3 as you noted.

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