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  1. Adrian Hayden

    MZR 2.5 Bottom End Swap - 08 MS3

    It flows fantastic
  2. Adrian Hayden

    '06 MS6 all out build

    It sounds heavenly.
  3. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    Agreed. It was my last idea/theory before being truly stumped. Even did a compression test because I was worried about the injector seals. I think it was a failing sensor and overcorrecting, or something similar. Probably didn't throw the CEL because it was still talking back to the computer...
  4. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    I was able to fix the problem yesterday. Here is what tipped me off: (red - load, blue - APP, purple - RTP) All over my logs, relative throttle spikes and dips erratically. While the ECU can get involved and cut throttle back if need be, there is no scenario where 25% APP should result in the...
  5. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    You misunderstand; I put step colder plugs in the car. What came out was probably the plugs from when the car was assembled. The new plugs have 100 miles on them, and looked fine when I pulled them yesterday
  6. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    I'm just running 93 from the pump. Haven't changed out the k04 yet, thought it would be best to learn a new tuning application with a relatively safe turbo. Filter is brand new, it is quite literally the 3.5 Aluminum intake that JBR sells on their website. As far as the plugs, they are what I...
  7. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    Plugs are one step colder, gapped to 0.028, for the record. If I accept the premise that what is basically Versa's high load tune doesn't work at sea level in the low to mid 80s with the added airflow of the TIP and test pipe, that doesn't exactly explain why it ran without a single stumble...
  8. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    That just sounds like an over-all bad time haha. Since I recently reflashed the same tune that I drove all those miles without so much as a misstep, doesn't it concern you that the tune is suddenly no longer driveable? If I had waited weeks, or made physical changes in between, it would irk me...
  9. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    Is there a reference to any literature for these tables? I know I'm missing logic here, but I really want to know *how* they interact with the WGDC. I come from HPTuners, and it's pretty trivial to get information about the ECU logic. If there's any write-ups on it, I would love to give them a...
  10. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    I logged fuel pressure there to check exactly that :) Because I drove for almost 100 miles without so much as a hiccup, I am doubtful that this is a tune issue on its face. The weather has been the same, and this gas is from the same fill-up. I don't want to accidentally end up tuning for a...
  11. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    Apologies, didn't notice the extension was .vtlog
  12. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    Tried tugging on MAF harness, no discernable changes.
  13. Adrian Hayden

    Stuttering/Hesitation after many, many changes.

    Hey everyone. Recently, I went through my entire Mazdaspeed6 and did a ton of maintenance (walnut blasting, injectors/seals, new gapped plugs, etc.), as well as some power upgrades. While the car had a TurboSmart BPV, CS TMIC, test pipe and catback before, I went ahead and installed HPFP...
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