CM2250 Poor fuel mileage

[Truckdriven]

(02-28-2022 )Rawze Wrote:  the IMAP and exhaust pressure sensors can cog up even if it is de-mandated. maybe start by doing some sensor replacements and ensure the feed circuit thru the thermostat housing for the exhaust bp sensor is not plugged up.

Sensors were all replaced along with t-stat housing cleaned

(02-28-2022 )Rawze Wrote:  as far as walnut blasting.. here is some older discussions on it...
ref: http://rawze.com/forums/showthread.php?t...3#pid10573

So according to that I will pull things apart and see how bad it is, the truck had EGR up until I bought it and I have no idea if it ever had any egr maintenance.