codes p-40 e 41 no fuel no spark - Technical Troubleshooting discussion in Forkliftaction's forums

Cat Lift Trucks (& Caterpillar) P5000:
codes p-40 e 41 no fuel no spark

did i miss somthing ? the relay box coroded replaced box and relays. cleaned as many connection points i could find. is there a fusable link that could cause this? if so were is it? is there a way to test the ecu or emu? thanks

Posted 6 Nov 2012 00:05
Discussion started by jo_c
Arizona, United States

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Thankyou kevin. I ended needing a new ecm. Now starts but vaporizor code comes up and machine runs like it got a choke on it and dies. What besides a valve stuck would you recomend I check? or do I need a new vaporizer or boot the system or boot the dummy workn on it lol thx

Posted 28 Dec 2012 12:32
Reply by jo_c
Arizona, United States

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Code e41 is for the stop lamp switch on the brake pedal

P04?? Is ECM communication error,if you had alot of corrosion at the relay box I would check the wiring going to the ECM from it sounds like bad wiring to/ from relay box to ECM check the connectors at the ECM for corrosion also and for bent broken pins or pins that are not seated All the way in the connector

Posted 6 Nov 2012 05:20
Reply by kevin_t
Pennsylvania, United States

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