my dads 2001 pickup 6.0L will not run correctly with maf pluged in if we unplug it runs fin it also has a rattling only when you accelerate between 2000-3200 rpms i have tried changing everything i can think off nothing has been done to its a complete stock engine any help is greatly appreciate and any advice to check on something is also
here is both the drive and tune that i put in today
ne tune 12-2-19.hpt
drive 12-7-19 rattles 2000 to 3000 rmps.hpl