Running a little hot? Not oil temp

[Kevin7898]

2005 isx, egr position sensor has malfunctioned leaving the egr closed. But egt seems a little high. I might have 6k lbs on the deck. This a normal temp for a non egr engine? I've never driven one without it and never saw over 600 on a hard pull up a mountain. Just wondering if there is something else the boss and i should be checking. Finally broke 6mpg last week grossing 90k lbs which is nice. Just over 7 with this load. Ignore the restriction guage. It's broken. Just put in new filters 2000km ago when we did an oil change and full filter change. Oil was a dark brown but not black

[Marajin]

(10-03-2016 )Kevin7898 Wrote:  2005 isx, egr position sensor has malfunctioned leaving the egr closed. But egt seems a little high. I might have 6k lbs on the deck. This a normal temp for a non egr engine? I've never driven one without it and never saw over 600 on a hard pull up a mountain. Just wondering if there is something else the boss and i should be checking. Finally broke 6mpg last week grossing 90k lbs which is nice. Just over 7 with this load. Ignore the restriction guage. It's broken. Just put in new filters 2000km ago when we did an oil change and full filter change. Oil was a dark brown but not black

If you don't have the engine re-programmed for proper non-egr operation, or if someone put in the typical 870 delete trash into it, then boost will jump up to normal levels and then then drops back and limits itself sometimes to as low as about 32 psi max (or less). This is a well known SILENT BOOST DERTATE. The power will often try to remain the same, but the boost derate will cause the EGT's to run high and it shortens the life of the turbocharger to about 2/3 what it should be.

They are the only a couple guys that I have ever met that are worth a damn with the CM870 that go out of their way to re-program the turbo and all the other stuff in ram memory on those ECM's towards getting them right. Everyone else who claims they can "tune on them" is just a wast of time and money.

Don't waste your time and money getting second rate half-assed engine destroying garbage. do things right or you will end up regretting it on one way or another in the long run.