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  1. 03 Bonneville Motor in 85 fiero Passkey issues

    Hello, I'm having a bit of an issue with my fiero that I'm having trouble figuring out. I was unable to turn off passkey in hptuners on the 2003 pcm despite setting VATS to pwm and turning off...
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    The balancer was 180 degrees off, i fixed it and...

    The balancer was 180 degrees off, i fixed it and the break up is gone. Still getting the same hp tuners error, I emailed customer service
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    According to my fuel pressure gauge, the pump is...

    According to my fuel pressure gauge, the pump is supplying enough pressure. At least it was as of last fall.

    I went ahead and replaced the crank position sensor because I saw some bizarre rpm...
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    102635 I believe I captured all the data you...

    102635
    I believe I captured all the data you guys asked for, if not let me know.
    Thanks again for the help
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    Okay, I'll get it scanned with that channel...

    Okay, I'll get it scanned with that channel selected.
    I was also considering forcing it to stay in open loop and seeing if the problem persisted. If I'm correct I believe that would keep it from...
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    I don't see any arching from the wires. Am I...

    I don't see any arching from the wires.
    Am I wrong in thinking that LTFT bank 1 and STFT bank 1 are showing the o2 readings?
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    Correct, no codes. The recorded rpms are doing...

    Correct, no codes. The recorded rpms are doing weird stuff pretty consistently now, a lot of fluttering and random drops and surges despite consistent throttle and load. I think I'm going to change...
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    Bone stock as of right now I'm running delco...

    Bone stock as of right now
    I'm running delco 41-606s at 0.057 gap.
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    I have flashed a few different tunes, but this...

    I have flashed a few different tunes, but this has been a consistent problem even before I touched the tune.
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    Just to reiterate, the break up happens...

    Just to reiterate, the break up happens consistently even when there is no knock detected. Obviously knock is not good, but I do not believe it is the reason this is happening.

    I don't believe...
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    99 L67 breaking up over 3000 rpms

    Hey guys,
    I have a motor from a 99 GTP swapped into my 85 Fiero. I'm at my wits end with an acceleration issue, and I was hoping someone on here who has more experience can take a look at my data...
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