MAF sensor

[velodyne]

my truck seems to have bad acceleration, i tried cleaning my maf and made no difference... but if i unplug my maf and start the truck it makes no difference and the check engine light DOESNT come on. is that normal???

[taillight]

No the light should be on. Pull the trouble codes and see what the computer does not like.

[velodyne]

but there is no trouble codes the light doesn't come on

[burnchassis3]

Be sure your unplugging the 3 wire plug,and not the 2 wire plug.
The 3 wire plug is the MAF,and you should definately see a engine light come on.
CS

[old_master]

What are we working on? Year, make, model, engine would make diagnosis easier.