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  1. Replies
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    ok. I did move injectors around and idle did...

    ok. I did move injectors around and idle did improve quite a bit, still have tuning to do?? (still learning about that) keep in mind i am running a 7747 ECM. Until i can get my hands on a 7730 ECM....
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    Well, I am retired so I will swap them around...

    Well, I am retired so I will swap them around over the next day or so and post the results
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    TPI Batch Firing ??

    I'm at it again, Brain won't stop. Mabey someone has the answer.
    GM uses batch firing of TPI injectors 1357,2468, the question is, why can't the injectors be batch fired 1843,6572?? which would be...
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    another question, you said connect knock sensor...

    another question, you said connect knock sensor to B8, the pin out has it connected to F9. so am I to use B8 because I am not using a memcal specifically for the 7730????
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    Great thanks for the info, I will post the...

    Great thanks for the info, I will post the outcome when I get the 7730 installed.
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    Thanks everyone, I did get my old 7747 to run...

    Thanks everyone, I did get my old 7747 to run engine although not very well. i have read it is possible but would be better off moving to the 7730.
    Forgive me but what is netress?, and to I need...
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    Maf to s/d conversion

    My 7165 ecm will not fire injectors, checked every thing i could, so thinking about moving to a 7730 . The question is will the memcal from the 7165 work in the 7730?
    I am using the moates adaptor
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    Hey Dave W, thanks for everything, But this...

    Hey Dave W, thanks for everything,
    But this conversion is driving me nuts, no mater where I set BPW the Idle is surging and high (1200), and in C/L the BLM is at 108 I have used the calculator for...
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    well i did the mechanical balancing of throttle...

    well i did the mechanical balancing of throttle bodies, I drove the car with BPW at 124 and it sneezed And coughed , set to 115 and no sneezing but backfiring out of exhaust(new).
    I thought I had...
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    I did check into balancing throttle bodies and no...

    I did check into balancing throttle bodies and no I have not done that. I am curious if I can use the multiple vacuum gauges I have to do that
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    Thanks 1project2many, I am curious about the...

    Thanks 1project2many, I am curious about the difference between 1227747 & 1227427?
    The fuel pressure @13 has not been changed at least since I have owned it
    as far as balancing throttle bodies,...
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    Thanks Dave, I did need to Change BPW to 120, I...

    Thanks Dave, I did need to Change BPW to 120, I will get some logging done and post the results
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    Yes, using motes F&B and adaptor installed in...

    Yes, using motes F&B and adaptor installed in 1227747
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    5,153

    Well, its been a while, Life rules but I am back...

    Well, its been a while, Life rules but I am back at the 84 crossfire, I did have to change ECM to 1227747 , still having Idle issues (really rich) starts out with low idle the as it warms up the rpm...
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    84 cross fire running rich at idle

    Hello from central Florida
    I have an 84 vette with cross fire injection.
    has been running super richich since I got it .
    this is what i have done so far ,
    hogged out intake, installed a summit...
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    Thanks, that was the problem, its up and...

    Thanks, that was the problem, its up and running.+ still have super rich @ idle
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    Just Looked , Tuner pro shows VATS Disabled(Flag...

    Just Looked , Tuner pro shows VATS Disabled(Flag not Checked)
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    New at this so not sure what VATS is , I thought...

    New at this so not sure what VATS is , I thought it might be related to Later models???
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    1226062 to 1228746 conversion

    I have a 84 corvette that I was trying to keep some what close to original.
    But I hogged out the intake and installed a small cam and long tube headers and a xpipe (no converters)
    the car has...
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