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    How about an EBL Flash-II? It hooks right up to...

    How about an EBL Flash-II? It hooks right up to your 7747 connectors and, since you have a manual trans, no issue there.

    https://www.dynamicefi.com/EBL_Flash.php
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    I honestly don't remember any small ground wires...

    I honestly don't remember any small ground wires going to the back of the engine, only the ground strap that goes from the head to the fire wall. As @Dieselsj said I found both the black/white and...
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    Upon further investigation, I found this which...

    Upon further investigation, I found this which shows the Tan wire from the ECM for the O2 sensor.
    16159
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    Here's some diagrams from my 88, they s/b close...

    Here's some diagrams from my 88, they s/b close to yours. Grounds 107 Black/White and 108 Tan are the ones.
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    16158
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    I'm not sure on the 7.4L but, on the 5.7L the...

    I'm not sure on the 7.4L but, on the 5.7L the grounds to the ECM are on the T-Stat housing.
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    I'm on the other side of the valley in Tonopah,...

    I'm on the other side of the valley in Tonopah, about 100 miles from the CA border. We call it East L.A. :rockon:
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    Welcome from a fellow Arizonian. Lot's of great...

    Welcome from a fellow Arizonian. Lot's of great info and folks here, enjoy!:thumbsup:
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    I confirmed this with RBob last year when I was...

    I confirmed this with RBob last year when I was getting high VEs on my TBI. It worked quite well and, as mentioned, I continued to VE Learn to get it fine tuned.:thumbsup:
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    Or maybe even an EBL Flash-II?:rockon: ...

    Or maybe even an EBL Flash-II?:rockon:

    https://www.dynamicefi.com/EBL_Flash.php
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    Thanks for the links.:thumbsup: We're using the...

    Thanks for the links.:thumbsup: We're using the 8 pin ICM on 87 - 95 TBI trucks but, as your link shows, the only difference is the G pin for ground.
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    Interesting. I remember reading a thread...

    Interesting. I remember reading a thread somewhere about different ICMs' latency (is that right?). What about the D1984A? Do you know how it's configured?

    BTW - that link you posted didn't...
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    What brand ICM do you have? There's a lot of...

    What brand ICM do you have? There's a lot of folks that found cheap modules don't last long. I was just looking at reviews such as these, too many ICM failures on new equipment....
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    My wife bought an HP 17" for me on QVC "today's...

    My wife bought an HP 17" for me on QVC "today's special value" a couple years ago. It has Intel Core i3, 1TB SSD, and 8GB RAM. The only issue is the lid is starting to crack near one of the hinges...
  14. For your SA and BPW there's a hack in the mask...

    For your SA and BPW there's a hack in the mask you need to apply the patch.
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  15. I can't help you with TC, maybe someone else can...

    I can't help you with TC, maybe someone else can jump in?
  16. Ooops, I didn't get them all in Scalars, sorry...

    Ooops, I didn't get them all in Scalars, sorry
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  17. No I meant around 56C. In looking at my .bin,...

    No I meant around 56C. In looking at my .bin, DFCO-CTS to enable DFCO is in 2 different places in Scalars but if I change 1 the other changes too, weird. Here's a couple snips of what I can find in...
  18. Take a look in Scalars/DFCO - CTS to enable DFCO,...

    Take a look in Scalars/DFCO - CTS to enable DFCO, it may have been set too high to disable it for data logging BLM? Try setting it to ~56*C
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    Look up the ESC, for each, on someplace like Rock...

    Look up the ESC, for each, on someplace like Rock Auto and see if they're the same (they should be if it's the same engine). On your logs, do you see an unexplained jump in timing anywhere? That...
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    Not really, it s/b steady and closer to 20* or...

    Not really, it s/b steady and closer to 20* or less.
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    Maybe the teeth on the distributor gear are worn...

    Maybe the teeth on the distributor gear are worn or you have slop in your timing chain? I'd pull the distributor and check the gear out.
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    Here's a link to a list of GM ECUs, it doesn't...

    Here's a link to a list of GM ECUs, it doesn't have your 6388 listed but, just about everyone else. Thought maybe it would be of interest to someone?

    https://xtronics.com/wiki/GM_ECU_eproms.html
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    I'd be glad to help you out but, that's too new a...

    I'd be glad to help you out but, that's too new a PCM for me, ha ha. There are a bunch of great guys with plenty of knowledge about $0D and $0E, (7427PCM?). That's all I know, keep the faith and...
  24. I ran the difference tool and this is all I could...

    I ran the difference tool and this is all I could find that's related to RPMs but, I don't know what RPM/VSS Ratio means. Can anyone help enlighten me?:innocent2:
  25. I just looked up the BDZL bin that is here on...

    I just looked up the BDZL bin that is here on this site and saw that it said for 700r4 trans so, I looked real quick and found the trans type in Flags. I guess I'm going to try a comparison in TP...
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