No maf signal
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Launching!
Joined: Jun 2013
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No maf signal 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
ENG SEN fuse I believe feeds the MAF power but the
IAT sensor needs nothing from that. A cheap meter
could tell you what's coming to the connector from
the PCM. Signs of life?
I might recommend you find a scan tool (many can
be borrowed, license not needed) and try a simple
look. If you see what he says isn't there, well....
Because there's tuners, there's tuners and there's
people who should not call themselves tuners. Which
you're dealing with, wants as much diagnosing as the
hardware before you get in too deep. Just sayin'.
IAT sensor needs nothing from that. A cheap meter
could tell you what's coming to the connector from
the PCM. Signs of life?
I might recommend you find a scan tool (many can
be borrowed, license not needed) and try a simple
look. If you see what he says isn't there, well....
Because there's tuners, there's tuners and there's
people who should not call themselves tuners. Which
you're dealing with, wants as much diagnosing as the
hardware before you get in too deep. Just sayin'.
