Cummins ISB CM850 (2003-06) Fault Code: 2347 (ISB) PID: SID 151 SPN: 611 FMI: 15 Turbocharger compressor outlet temperature – data above normal. High turbocharger compressor outlet temperature has been calculated by the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 2347 (ISB) PID: SID 151 SPN: 611 FMI: 15 Turbocharger compressor outlet temperature – data above normal. High turbocharger compressor outlet temperature has been calculated by the ECM.
Possible causes for high turbocharger compressor outlet temperature include:
1)Air intake leaks between the air filter and turbocharger, allowing warm underhood air to enter the turbocharger compressor inlet
2)Incorrect turbocharger compressor inlet temperature sensor output
3)Incorrect output of sensors used to calculate turbocharger compressor outlet temperature, such as ambient air pressure and turbocharger speed.
NOTE: This code will most likely not be active with no load in the shop. The engine must be loaded to trip this fault code and determine if the failure has been found and fixed.
Possible repairs:
1)Replace the variable geometry turbocharger.
2)Replace the turbocharger compressor inlet temperature sensor.
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