PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

HP Tuner Help

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Old 07-31-2022 | 04:46 PM
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Gmcmanap's Avatar
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Default HP Tuner Help

I'm having a weird problem. I did some ve and maf tuning. Maf tuning went great tyne worked great. Started doing ve. To start of when I failed the maf sensor under engine diagnostic by putting high to 1 hz and low to 0 hz and also changing p0103 and p0102 to mil first error I got stabilitrak issues and traction control issues. Soon as I load a tune without this the problem is gone. But with those issues being gone I got a new one. Even on stock tune truck runs like crap. And when logging I see weird stuff. The most concerning is when going into open loop if commands a .7 eq ratio. Somewhere around 11 afr. This is without pe active. How do I fix this. Also the truck now stays in open loop until you let go of throttle completely. If anyone responds I will attach tunes and logs
Old 07-31-2022 | 05:59 PM
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attach the tune. that will help the most. if not we will just be guessing
Old 07-31-2022 | 06:00 PM
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attach the tune that was working before you failed the MAF and the one you are having problems with.



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