PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

fairly simple question

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Old Oct 10, 2013 | 10:29 AM
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Default fairly simple question

ive googled this for days and havnt found an answer

basically im running hp tuners sd 2 bar OS i got all the pids in for it to go to 210kpa and all

my issues is when i go to take stft readigs to dial in VE table i get values in all the cells 105 and under, once in a while some in the 110 zone, when i get into boost the cells read where im at in MAP pressure and rpm but for there value there always 0

will STFTs always read 0 in 105-210 kpa? like is that what its suppose to do or is something wrong, thanks!
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Old Oct 10, 2013 | 11:25 AM
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Have you changed your PE settings? When they are going to zero your most likely going into PE mode.
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Old Oct 10, 2013 | 12:47 PM
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my PE mode is set to 1.0 all the way across which means normal correct or no PE?

my BE is set from 1.0 to 1.2 with steady increments going from 110-210kpa

is BE making my stft not read while in BE?
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Old Oct 10, 2013 | 05:01 PM
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that solved my issue! it was my boost enrichment kicking in at 110kpa that was screwin things up, thanks!!
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Old Oct 11, 2013 | 12:03 PM
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I would think that in any enrichment mode, the PCM knows
you're not commanding stoich and will not attempt to trim.
By 100kPa I'm surprised you'd see any nonzero open loop
STFTs even if open loop STFT is enabled.
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Old Oct 11, 2013 | 02:04 PM
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i had 16s and 17s popping up in boost
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