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  1. Replies
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    I installed my old regulator and injectors and...

    I installed my old regulator and injectors and have not had any issue since. I also blow out the fuel lines before installing. I have not had a chance to take the adjustable regulator apart yet.

    I...
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    Ok the issue reappeared today, going to work,...

    Ok the issue reappeared today, going to work, when I left the house had 13.5 when I got to work 4 miles had 13.5psi and 13 volts, left for lunch had around 10psi, volt gauge was reading 12.5 - 13...
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    I have installed a volt gauge that is taped in at...

    I have installed a volt gauge that is taped in at the plug near the tank. at least the next time it happens i will have something to look at currently reading 13.5 amps. The fuel lines are stock and...
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    Does it fix itself when you cycle power Not...

    Does it fix itself when you cycle power

    Not completely, but after it sits for a while.
    Has new pump and filter, about 1 month ago, problem contiued symptoms the same. Going to hook up a volt...
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    Thanks EM, I have been hunting for loose wire and...

    Thanks EM, I have been hunting for loose wire and grounds for weeks, Hose sucking air thats a new one can you give me lead on where or how to look for it, any know issues i should be aware of.
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    Adj fuel regulator issue, maybe?

    I have the CFM-tech adjustable style regulator, just wondering if anyone has had any issues with sudden lose (13 down 7) of fuel pressure and then it comes back with one of these. Truck will run fine...
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    Thanks a bunch, And wow never really looked at...

    Thanks a bunch, And wow never really looked at the graphs before. I will burn a chip tonite and give it try tomorrow
  8. Replies
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    Need help with a tune

    Need help to get me close. It seems that i can't keep this thing from running rich. I'm sure i'm missing something

    Here's a resent log from my 1989 v2500
  9. Replies
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    I'm back, been busy moving and a few other...

    I'm back, been busy moving and a few other things, but now i have some time to get back to tuning. I manged to get the
    mechanical temperature gauge hooked up so i can verifiy that the computer is...
  10. Thanks guys this is some good info.

    Thanks guys this is some good info.
  11. looking for thoughts and tips on tuning SA tables

    I have learned a lot over the last few weeks and the Suburban is running really good. I have tuned the VE table to get the BLMs really close to 128 in most of the cells. my avg is somewhere around...
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    I only change it to AA on that chip to make sure...

    I only change it to AA on that chip to make sure it wasn't a check-sum fault that was causing my blinking CEL. when putting the 8747 bin in my 7747 to see if it would work. it didn't.
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    8747 computer stopped working all together, 7747...

    8747 computer stopped working all together, 7747 plugged in an.d ran with 7747 bin. I tried a 8747 bin in the 7747 just as test. It didn't work.

    Using AA for a mask id, disables the checksum...
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    I switched from a 8747 to a 7747 with no wire...

    I switched from a 8747 to a 7747 with no wire changes direct swap. The only issue i have is with my temp sensor and O2, nothing to do with the 7747 ecm.

    FYI- I did try running a 8747 stock bin...
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    I'm also a member on CK5. use a TBI adapter. Like...

    I'm also a member on CK5. use a TBI adapter. Like said the EGR eats up a few horsepower but it will help with fuel mileage. I'm told its worth about 1-2 mpg. But i'm new to turning. Personally i...
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    What is the best way to disable PE. And thanks...

    What is the best way to disable PE.

    And thanks guys for the work on the xdf and adx.
  17. Replies
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    It say LOCKED when its kicks down on the log. I'm...

    It say LOCKED when its kicks down on the log. I'm not really watching the computer when i'm driving. The cop here in socal look for people looking down when driving, I don't need any tickets.
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    A compare my current bin(AHWZ) to the ASDU. On...

    A compare my current bin(AHWZ) to the ASDU. On the 3speed biin every thing is maxed out except for the TCC-COAST vs TPS is set to 5.20%

    See screen capture
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    kick down works just not on the freeway, might...

    kick down works just not on the freeway, might need to adj something but it does around tow from around 35-45.
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    Good info here. Does a heated O2 act like a...

    Good info here.

    Does a heated O2 act like a non heated O2 if it doesn't have power running to it? Lets say you wire in a relay and the relay goes bad while your driving, Will the O2 continue to...
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    I didn't want to shut PE off during tuning until...

    I didn't want to shut PE off during tuning until I got things a little closer. I was running so lean on the freeway that i was scared to turn PE off. I'm going to do 1 more log latter to confirm that...
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    if you look close when i was accelerating with...

    if you look close when i was accelerating with more the 70% throttle the TCC goes into locked mode. look around 6:33 and 17:39. it might just be a wiring thing. The trans shows its in low also. I...
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    Oh Boy, she is starting to run good. I have been...

    Oh Boy, she is starting to run good. I have been doing some freeway logs and using the excel spread sheet to make correction. Ill attach the latest log below from this mornings run. It was running so...
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    This sounds just like the problem i'm having. I...

    This sounds just like the problem i'm having. I switched bins and started leaning out the idle area VE cells and it has improved alot but its still there. I was thinking EGR too. I was planning to...
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    Looks like i broke either the transfer case or...

    Looks like i broke either the transfer case or something in the front axle, maybe a CV joint. I took the front driveshaft out and the noise went away for about a week, now its back and getting worse....
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