|     ISX 2350 485    |  
|    01-21-2022, (Subject: ISX 2350 485 )   Post: #45   |  |||
 
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|  RE: ISX 2350 485    CM2350, ISX15 550, 2015   Boost pressure measured several times, EGR tuneup completed, goes up to 38PSI. ECM was flashed with latest calibration a few years ago. This is from the factory sensor and not a secondary boost gauge. The truck is due for DPF bake and de-ash. However, i was looking at some data I collected a while ago when the truck was pulling some short 5-10% grades loaded in the city, what is the max turbo speed supposed to be? This one is getting above 100,000 RPM. Also - did the overhead set a few weeks ago, same results afterwards. No axial turbo play, impellers looked good on the intake side.    |  |||
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