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Thread: failed maf

  1. #1
    Tuner
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    failed maf

    l83 6l80been trying to refer my tune to other stock tunes finally got rid of all my dtcs. as well as my map issues.stil having cold start issues,isnt hunting for idle but runs like a dog ,no ass at all for the claimed 400hp 425lbs.ft torque as discliaimed in hot rod magizine. iam just wandering if iam ready to maf an ve tune with whats goimg on with this scan,yes i have a leaky bank 2 exhaust going have it bent more an buttoned up when weather permits.just hoping tranny setting an vss is right an if that would cause low power.not getting any limp modes as far as i know.
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  2. #2
    Tuning Addict 5FDP's Avatar
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    Post up a log without those code and MAP issues. Both of those logs have crazy problems with the MAP sensor and MAF sensor.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
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    i get a baro sensor high circuit p2229 ,p182e an p1915 range sensor does not indicate park/neutral witch last two i was sent 4x4 tranny 2018 had convert it an well forgot range switch.witch wouldnt start without this if was malfuctioning an does an does display right gear under scanner when changed. there still couple drive cycles to clear permanant dts. a p2127 throttle pedal sensor switch circuit low. an ignition coil f an b primary secondary curcuit other than that i can get these go away with key cycle an to reconnect an reAD DTCS again.i know gen v ground an power super super sensitive wrong ground power send fasle dtcs it does start now map not as crazy as was. will say it a 2016 harness 2014 ecu an 2108 tcm. litteture ianm getting is any tcm after 2014 the most desiarable because compatibility issues with ecu os this my second harness ive reworked went got new one make sure an powered all circuts like gm 30amp main power ecu with the other small purple ecu with each bank coils with o2s an maf one another 15amp an tranny ecu battery main each own fuse.dod erelivant but has own 15amp as dod is diabled.will say using caddilac pedal an aftermarket maf did notice bosch or hitachi does have differnt pin outs.running 4in pipe with maf 6in down after 90 elbow for total 10 in. right in line with liteture.tcm an ecu seem be just fine as compatible no random dtcs.i have 3.5in maf tube would that help?
    Last edited by [email protected]; 02-17-2021 at 12:52 AM.

  4. #4
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    bosch an hatchi have different pinouts also with i have aftermarket maf sensor not sure witch one but would wrong pinout cause this?

  5. #5
    Tuner
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    l83 6l80 failed maf?

    well switched to na-map tiap an baro an map sensor seem better.wont start....
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  6. #6
    Tuner
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    l83 6l80 failed maf?

    well switched to na-map tiap an baro an map sensor seem better.wont start....
    Attached Files Attached Files