tim4daflow

Did a cam swap and few other upgrades on a 2008 silverado when I tried to get tuned, tuner says my maf sensor has no signal at all the air temp is built into the maf and it's not reading either so it kind sounds like I'm not get power to the unit itself does anyone know if there is some sort of relay or fuses on the harness that won't let the maf sensor read

08 pimpala ss

Iat has its own power. But as far the rest it's a 5v ref. I'd check all fuses the under hood and in the driver dash. And check the connection at the ecu