MAF Error P102 and P103
 

I am getting P102 and P103 codes at the same time for the MAF. this indicates low and high current readings. I checked the connections and all seems OK. No apparent vacuum leaks. Anyone have any ideas? Bad sensor?

Possibly. I would use a scanner with live data to see if the MAF actually moves with throttle. If not and it’s stuck on one number. Check for power and ground. If those are good more than likely it’s the sensor.

I was going through the same problem as you not long ago. With a scanner plugged in the truck was showing no g/sec reading from the MAF. I checked over every possible option a few times but ended up ordering a new computer off eBay flashed to my trucks VIN number ($120 shipped). Plugged it in and did the security relearn procedure and it’s running great again.

Hope this helps someone. That problem sucked.