2001 Chevrolet Suburban Repair Question
Mileage: 136,000 miles.
I have a that's setting codes p0102, p0443, p0449 and now p1514. i've changed out the maf sensor when i first got the p0102 code and the
Asked by thomasstuckeyAnswer
102 is a mass air flow code. the 400 series are evap codes.
how does it run??
are all connections good at the mass air flow?? is the big hose to the air filter tight and secure??
Roy
With the MAF connected it would start fine then about 10 to 15 seconds the RPM's would decrease and it sounded like it was ready to stall but really just run rough. The air filter intake hose is secure the connection look good, i've got good PWR in 14VDC and a solid ground, from the signal side with the truck running i get about 5.04VDC. I didn't get the 400 series codes until I changed the MAF. When I disconnect the MAF it runs perfect with no issues.
most likely the sensor is bad.
Roy
So you think that the new sensor i put was just bad?
possible. why did you replace it
Roy
because i got the 102 code after replacing the intake gaskets for codes 171 and 174.
did you try the old mass air flow?? since you replaced the gaskets, the sensor may not have been bad, just unable to overcome the vacuum leak
Roy
i changed the MAF after taking care of the other elbows and gasket
ok, did you put the old one back on??
Roy
nope i did a one for one so no $65 core charge