PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

HP Tuners Newbie

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Old Jan 4, 2021 | 06:13 PM
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Default HP Tuners Newbie


Can anyone tell me anything about my tune. Bought car a few weeks ago. Just bought the HP Tuners unit. My issue is cold start. It will stall unless I play with the gas for a minute. Then she runs fine. The first log just idle was a warm start so no stall.
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File Type: hpl
First log just idle - Copy.hpl (54.2 KB, 28 views)
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Old Jan 6, 2021 | 08:30 PM
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I am currently on my phone so I can't look. I would suggest looking at Chopperdocs videos. He has them listed on here. The RussK stuff will also get you in the right direction. Be prepared if you have never tuned, it's a little deep at first.
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Old Jan 6, 2021 | 09:10 PM
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I've been checking out the Goat Rope Garage too, good stuff
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Old Jan 11, 2021 | 11:36 AM
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Made a few idle changes and it was worse. I flashed it back.
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Old Jan 19, 2021 | 11:02 AM
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For cold start, it's all in the IAC tables. One thing you can do to help is port the IAC itself, and I highly recommend doing that, unless it's the stock TB. The aftermarket TB's have very small IAC ports in relation to the stock one.

To tune it, you can follow my video on it, it should help you out. Note the numbers don't have to be perfect, but they should be fairly consistent with your VE table slope. On either end of the table, the values will be skewed. Work on the center areas, especially during cold start. You want about 40-60 counts when the car is hot, otherwise it won't be able to open enough on cold days. The blade determines this value. More open = less counts. Hope that helps.
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Old Jan 22, 2021 | 07:37 AM
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Haven't been able to adjust my tune. Looking for a steering column at the moment.
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