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Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1648
Experience:  International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter
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I have a 2002 isb Cummings in a newmar motor home 300 hp get a check engine lite when off

Customer Question

I have a 2002 isb Cummings in a newmar motor home 300 hp get a check engine lite when off throdle goes into limp mode and also under full throdle it skips about every 5 seconds hook up code reader get two codes frist 128 237 11 sid start enabledevice failure mode not identifiable seen 14 times2nd 128 254 8 sid engine number 1 controller number 1 abnormal frequency pulse width or period my Cummings mech said only had 8.5 volts to lift pump had corrison but did not help some times when you start it cold engine check lite comes on and goes into limp mode or if I need to go real slow 1 to 5 miles a hour lite comes on limp mode shut off engine to reset then works good
Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Expert:  Andy replied 2 years ago.
Hi there ! My name is ***** ***** I would like to try and help if i can ! Can we start with the engine serial number please ?
Expert:  Andy replied 2 years ago.
Hi there ! Do you still need help with this ?

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