PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

ported maf need help

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Old 06-15-2006, 05:26 PM
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Default ported maf need help

i recently ported my maf. now when i shift i can feel slight jerking of the car i have ls1 edit and was wondering what do i need to do fix this i was thinking of going to where it says maf and add .3 to the whole table would this work
Old 06-16-2006, 11:59 AM
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Do an SD tune, if you have a Wideband it will make it a whole lot easier, get your VE spot on, then work out the MAF error. I think I have problems with my MAF also, have de-screened it, but not re-calibrated it. I dont think its a good idea to add a certain figure across the entier range, think multiplying it by a number would be better. But really you need to find the AFR Error when you plug the MAf back in and then dial in the changes to the MAF table.
Old 06-16-2006, 02:24 PM
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You just sent the PCM into dizzy mode. The MAF isn't sending the same values per actual airflow as before. Therefore you need to recalibrate it.
Old 06-17-2006, 10:09 PM
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what do you guys think is a good number to multiply by for a descreened and ported maf




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