Pyrometer problems

Any leaks in the air-to-air? or anywhere else in the turbo system intake side?

 

Cover it with a piece of duct tape.

 

yeah duct tape can fix anything lol

 

I just had a cummins ism 400 egr motor do similar the egt was redlining intermittently turned out to be the turbo the vanes inside the turbo were hanging up inside sorry I can't think right now of the name but the turbo still produced boost and past the test on cummins insite I had found a blown exhaust manifold gasket and thought that was it but was not problem checked each cylinder with a heat gun right after a hard pull and all were within 10 degrees tried pulling exhaust to make sue muffler wasent plugged then on a hunch decided to pull the turbo and pull the exhaust housing off and found the vanes were wore from rubbbing on the housing so it was makeing boost but not completly opening and causing a restriction put a new turbo on and its been out 8 months no problems

 

Did you hook up an manual pyro gauge to make sure its not in the harness I think 06 has the dash that has the module type gauges the tuck I was working on was an 06 and that's what dash it had

 

Would anyone happen to have the part number for the sensor and gauge?

 

Check the ground on the pyro, connect it to a direct ground to battery.

If your pyro works after that check. The ground is the issue. One bolt by the fuse box goes through firewall. Since your truck is aluminum they have to run all grounds to one location.