PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

help with p0102 no maf, no o2 readings

Old Feb 5, 2021 | 10:08 AM
  #1  
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Default help with p0102 no maf, no o2 readings

Hey all,

i can't figure this out, i had a p0102 error, i have two OEM mafs and both worked before. i'm not getting a maf reading, when i look at the primary o2s i get no readings as well, one sits at .4 and one sits at .1

i checked the eng sens fuse and it looked fine, i put another one in it that is known good and no change.

i wiggled the wires around by the maf and nothing changes, i am getting a reading from the iat

is there another fuse somewhere possibly? i get water into the o2 connectors every once in a while and i have to spray them out and let them dry and everything is fine after that.

not sure where to look. it just happened suddenly
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Old Feb 8, 2021 | 03:49 PM
  #2  
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i was looking at the wrong fuse, the fuse was blown. i replaced it and everything was fine for a while but it blew again, must be shorting somewhere.

i looked all over the o2 wires and extensions and everything looked fine, i rerouted them and it hasn't blown yet.

i also had a nasty power steering leak in the high pressure hose, i was able to snake a new hose in there and got it fixed up

car runs good for now. hopefully i wont have to chase around a short somewhere
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