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Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 1571
Experience:  International trucks, International, Maxxforce and Cummins engines, diagnostic, electrical, Hvac and refrigeration repairs
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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: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Andy replied 1 year 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 1 year ago.
Hi there ! Do you still need help with this ?

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