gm code po102 mass air flow sensor?

[ratmn218]

have a truck with code on, switched maf sensor with a known good one. reset codes and still comes up?problem started when a stick got jamed under truck near oxy sensor,the one after the converter. wires are still attached, sensor not snapped off, but can see where stick prob hit it. are these 2 components tied together? or any other places to look?

[Jeremy airjer W]

Year, Make, Model, engine size?

[ratmn218]

1997 chev truck 5.o 4x4

[ratmn218]

should also note truck has a hesitation on acceleration

[Scott K]

Did the stick damage the outside casing to the rear o2 sensor, is it bent? If so replace the o2! As for the code 102, a few other things can set this code, low rpm, vacuum leaks, open wires. The hesitation is usually a maf concern.

[ratmn218]

easy fix, tough diagnose.fuse blown under hood that feeds maf sensor.thanks guy for the imput

[Shack]

Wow, the second 0-2 fuse repair I have ver heard of. First one was from Airjer (I think) on here.

I would drive and see it blows again, if so replace that 0-2 sensor (like 4wanderingeyes said) or keep replacing fuses. It could have caused a slight tear in wire of internal connection inside of 0-2, causing it to short to ground, thus blowing fuse.

Good luck.

Worst case, your fuel econ is going to drop or cause melting further up in wiring. IMO