2001 LB7 P0102 code

[Napco4WD]

Hello to all. Ive come here looking for advice. My truck is a 2001 LB7, it has been down due to head gasket job. Ended up rebuilding the complete engine. Has taken a year!. So got it running Saturday night. Now getting an error code P0102. Had some mods done, cold air intake, high flow up pipes, down pipe, headers, rebuilt turbo (stock), CP3 pump and all the ARP hardware. A friend had his truck down for 2 years but we decided to try his MAF sensor to see if it was a wiring problem or the sensor. His did the same thing. His truck is a few years newer but the sensor appeared the same as mine. Has anyone got a schematic of the wiring for the sensor and what wires do what? I need to diagnose the harness.
Any help would be MUCH appreciated!

[More Power]

P0102 - MAF sensor signal is less than the possible range of a normal sensor or less than 16 grams/sec air flow.

MAF (Mass Air Flow) sensor not properly installed? Unplugged? Broken wire?

A decent code reader should be able to read the MAF signal. That'll let you know if it's processing a signal.

I forgot to plug in the MAF in my Lil Red truck following a head gasket replacement. Of course it illuminated the truck's SES lamp. Even after plugging in the sensor, the SES continued to be lit. It took a number of successful key-start-cycles for the SES to remain out. A reader can reset the codes.

Jim