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07 5.9 When I'm driving 70 miles an hour on flat ground my boost is 12 psi What could cause this I've checked for boost leaks I change the wastegate actuator Because it had a busted Diaphragm the map Checks fine From what I can see
The reason I ask because I'm getting about 12 mpg The truck is bone stock besides 60h II injectors
The reason I ask because I'm getting about 12 mpg The truck is bone stock besides 60h II injectors
#8
What RPM are you turning?
Auto or stick?
Gear ratio?
Park brake off?
Seriously that is high but it just may be your gauge is off try another one! Your mileage sucks so there may be other issues like a melted piston or bad injector causing the engine to work harder on 5 cylinders. These engines are great at hiding problems by compensating fuel to the other injectors to keep it running. Seen it alot bad mileage is the only real give away something is wrong!
Auto or stick?
Gear ratio?
Park brake off?
Seriously that is high but it just may be your gauge is off try another one! Your mileage sucks so there may be other issues like a melted piston or bad injector causing the engine to work harder on 5 cylinders. These engines are great at hiding problems by compensating fuel to the other injectors to keep it running. Seen it alot bad mileage is the only real give away something is wrong!
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