MAF issues, code P0101

MARKBEXRUD

MEMBER
2004 GMC YUKON
0.6L
V8
4WD
AUTOMATIC
200,000 MILES

6.0 blew up put in 5.3 from heads to pan used 6.0 intake and injectors runs fine, but check engine light comes on with p0101 code (maf). I have cleaned it also changed the to the one from the 5.3 cleared codes many times. Truck runs fine but light comes back on. Thoughts?

1 Reply

ASEMASTER6371

MECHANIC
52,797 POSTS

Good evening,

I posted possible reasons for the code.

You cannot clean a mass airflow sensor. The part that reads the air temperature gets hardened carbon burned on to the tip. There is no cleaner for that.

Also, the part for the 6.0 is different from the 5.3. It may be the sensor itself. You may need a sensor for a 5.3. The Ac/delco numbers are different from the 6.0 to the 5.3.

Roy

P0101
Descriptor
Probable Causes
Air Filter Element
Air Intake Duct
Exhaust Restricted
Manifold Absolute Pressure (MAP) Sensor
Mass Airflow (MAF) Sensor Contamination
Mass Airflow (MAF) Sensor Harness Routing
Mass Airflow (MAF) Sensor/Intake Air Temperature (IAT) Sensor
Vacuum Leak
Water Intrusion
Wide Open Throttle (WOT) From a Stop