Mass air flow sensor

Asked by GuruPL6P1 Jan 20, 2020 at 01:34 PM about the 2000 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

The car drives for a few miles dies put the scanner
on it cuz mass flow air sensor reset it it does that
every day every time within about five miles I put
two of them in it I changed the map the throttle
body position sensor the car drives for a few
miles dies put the scanner on it cuz Nashville air
sensor reset it it does that every day every time
with in about 5 miles I put two of them in it I've
changed the map the throttle body tuition sensor
Frank sensor and cam sensor and it's still does it
once I reset the mat at school are sensor it's
drives again for a little while and does it again

1 Answer

735

They had an issue with hot return gasses from the pcv system melting the plastic intake manifold. That would allow water into the oil and oil into the water and also could allow vacuum leak that would show up as odb codes for map and/or maf sensors. Do you have oil in your coolant or coolant in your oil? If not good....but vacuum leak might still throw codes for map and maf. Have somebody check your car for vacuum leaks...or goodle it and do it yourself.

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