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2004.5 Cummins 2146 error code, any truck Techs? #2983498
11/09/21 02:58 PM
11/09/21 02:58 PM
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6PKRTSE Offline OP
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6PKRTSE  Offline OP
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Truck engine light came, truck started losing power and bucking. Pulled over and had it towed home so I didn't want to hurt anything worse than it was. I haven't opened the hood yet to start diagnosing anything further yet but OBD II scanner gave me a 2146 error code. Where should I start?


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
Re: 2004.5 Cummins 2146 error code, any truck Techs? [Re: 6PKRTSE] #2983523
11/09/21 03:55 PM
11/09/21 03:55 PM
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UPPER MICHIGAN, MARQUETTE COUN...
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NITROUSN Offline
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That code is sort of generic. It has to do with the ECM, wiring or injector short. How many miles? Is there a programmer on it? If so remove it and run it. I have seen a lot of EDGE programmers fail with similar symptoms.

Last edited by NITROUSN; 11/09/21 03:57 PM.
Re: 2004.5 Cummins 2146 error code, any truck Techs? [Re: 6PKRTSE] #2983742
11/10/21 08:42 AM
11/10/21 08:42 AM
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Saw a few valve cover gaskets cause this where they stamped the terminals. Newer gasket they improved it. I’ve also drilled a very small hole through the stamped part and soldered it when parts were not readily available…. I’d also ohm out the injectors while you’re in there. A shorted one will kill voltage to three of them as the driver circuit is separate on 1-3 and 4-6.

Re: 2004.5 Cummins 2146 error code, any truck Techs? [Re: J_BODY] #2987638
11/21/21 08:07 PM
11/21/21 08:07 PM
Joined: Jan 2004
Posts: 4,032
Motor City
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6PKRTSE Offline OP
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6PKRTSE  Offline OP
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Posts: 4,032
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Thanks for the replies. I have not have time to mess with it yet. I have to go buy a new ohm meter and start from there. I found out both of mine are now junk.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.






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