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Type: Posts; User: Dom

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  1. Replies
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    Fuel Trims Readings odd

    Some back round, Over paid for a 1999 Chevy Tahoe 2dr, I have not drove it, because of brake problems (working on it when weather permits). I bought an OBDLinkMX+ to Log data. Looking at the data...
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    Fail Retested with ALDL tester and now fails. ...

    Fail Retested with ALDL tester and now fails.

    I am thinking BAD Cable
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    Well it worked once. Com port seams to get lost. ...

    Well it worked once. Com port seams to get lost.
    Latter ...
    I found this on some other forum "Each computer I use is slightly different and what happens is there is "something" with the speed...
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    I found this web sight (...

    I found this web sight ( http://www.advanceduninstaller.com/TTS-OBD1-Interface-Tester-v230-4209cefe31423095d371143bc4451d1f-application.htm )and installed it, ran test and failed, ran diagnostics and...
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    I am having the same problem, I have two laptops...

    I am having the same problem, I have two laptops one with Win 7 and the other Win 10.
    Only errors when connected.
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    Thanks Dave. I went back to the original bin I...

    Thanks Dave.
    I went back to the original bin I got from you and try again if needed.
    I read from another thread that if the BLMs are with in 6 from 128 they are close enough, so BLMs from 123 to...
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    How Should a BLM Graph Look when finished tuning?

    So after over tuning BLMs the graph looks very spiky, BLMs look good.
    The near ideal graph, low map range don't look right.

    I attached bin file and XDF file (twice) I think those are the files...
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    The readings I was comparing the BLMs to are the...

    The readings I was comparing the BLMs to are the WBO2 gauge it self.
    Idle BLM 128 WBO2 gauge fluctuates 15.5 to 16.5, driving is about the same.
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    I worked the math with numbers from my WBO2...

    I worked the math with numbers from my WBO2 instructions numbers
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    Thanks Dave, I have had it in for some time now....

    Thanks Dave, I have had it in for some time now.
    There is a difference in my readings, wide band reads around 15.5 when BLMs are at 128, not sure if that is right.
    Truck runs good, but i would...
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    Up date Never Tested the map sensor If I...

    Up date

    Never Tested the map sensor

    If I pause for 1 sec before I crank the engine over giving the map sensor to self calibrate I get a repeatable reading.


    If I don't pause or get a miss...
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    I did increase my timing and it stopped...

    I did increase my timing and it stopped happening. THANK YOU
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    Here is a screen shot of what I mean by Blip.14260

    Here is a screen shot of what I mean by Blip.14260
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    Timing Advance Blip Help

    Hello
    I have about 3 cells in my timing advance log that reads very odd 20 sec in.
    Not sure what would cause this.
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    I will give that a try

    I will give that a try
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    I know that the weather will have an affect on...

    I know that the weather will have an affect on the real baro Pressure, but is the swing that large normal?
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    Barometric pressure swing

    I am getting barometric pressure readings 80 to 95 causing tuning to be inconsistent, is there an adjustment to help with this?
    Reading is stable when logging but from one day to the next is where I...
  18. Thread: Fuel Delivery Help

    by Dom
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    13,188

    Up date. Injector DC% seems low, at 30% throttle...

    Up date. Injector DC% seems low, at 30% throttle DC% is at 11.84 injector Base Pulse Width 2.90.
    I don't know how to address this, if this is even a problem, truck runs OK just cant seem to tune it.
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    WBO2 Near idle Loging

    I don't know if this is a good idea or not or even new.
    I edited the adx file, losing the fuel usage log table to log WBO2. I will also edit one of the spread sheets that I downloaded. If this...
  20. Thread: Fuel Delivery Help

    by Dom
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    13,188

    That was the fix, I set the injector constant to...

    That was the fix, I set the injector constant to 72 and went back to the bin file I got from Dave and copied over the VE tables. I will see how tuning goes.
    Thanks again sturgillbd
  21. Thread: Fuel Delivery Help

    by Dom
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    Thanks You I was going to mention that hole,...

    Thanks You
    I was going to mention that hole, that hole is also in the off idle as well. I will try.
  22. Thread: Fuel Delivery Help

    by Dom
    Replies
    5
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    13,188

    Fuel Delivery Help

    1st Problem, I bought injectors ( GP Sorensen # 800-1807n ) cant find the flow rate on them. Called GP Sorensen and they told me that they did not make these injectors for ten years, no help.
    2nd...
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    Up date, 0.03008 is my original number, double...

    Up date, 0.03008 is my original number, double that 0.06016 makes better math and will match the gauge at about 14.31 AFR. End equation X*0.06016+7.35. I will need more testing to check the slope.
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    ADX file was modified to WBO2 (X*3.008+7.35,...

    ADX file was modified to WBO2 (X*3.008+7.35, X=V). Non modified ADX file gets closer with X*0.039063+10. Something is messing with X value. I tried X*0.03008+7.35 and gets me close, but don't add...
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    After making changes to my bin file for the egr...

    After making changes to my bin file for the egr that is listed in the notes, I started getting some readings. The readings are in the 400 rang witch is way off.
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