Question about Dodge Ram 3500

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04 Dodge Ram 2500 5.9 Cummins Loss of throttle, truck still runs happens intermittenlty Codes P2122 , P2121 and P2509

While driving loss of throttle, truck still runs and drives I have three codes P-2122 P-2121 and P2509 any help is appreciated?

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The one code is a injector timing one, so anywhere in the fuel line could be off

Posted on Sep 02, 2014

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  • Dodge Master
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I do not have Cummins codes so I would consider replacing the injectors or taking it to a Cummins service centre to have it fixed as the parts will not be cheap if not diagnosed correctly

Posted on Nov 17, 2013

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mike corban
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SOURCE: p2121 and p2122

P2121 Code is throttle/pedal position sensor/switch D circuit range/performance
P2122 throttle/pedal position sensor/switch low circuit
Bad pedal maybe, does it return to idle?

Posted on Jun 06, 2012

wilsodfarm
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SOURCE: how to fix a code p2509 problems

Please check your ground wire they have a weak link there and have frequent problems on the ground curcit

Posted on Oct 29, 2009

tburtk
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SOURCE: 2004 dodge 2500 with cummins diesal engin light

your code is PCM/ECM power input signal intermittent. this is ussually a sign of a bad connection whether it be in a connector or a short or brake in a wire.

Posted on Feb 02, 2010

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SOURCE: 2007 Ram 2500 with 6.7L Cummins 23K miles. Ran

PCM

Posted on Mar 19, 2010

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SOURCE: my 2001 dodge ram 24

CODE PO216 -FUEL INJECTION TIMING CONTROL CODE PO237 -MANIFOLD ABSOLUTE PRESSURE SENSOR A TC SYSTEM LOW INPUT. CODE PO382 - GLOW PLUGS CIRCUIT B MALFUNCTION.FAULTY WIRING,FAULTY GLOW PLUG RELAY.FAULTY GLOW PLUGS. CODE P1291 - NO TEMPERATURE RISE FROM INTAKE AIR HEATERS CODE P1693 - DID NOT SEE BUT LOOKING IN CODE BOOK P1691 P1694 PROBLEM IN THE FUEL INJECTION PUMP OUT OF CALIBRATION AND PROBLEM IN DIESEL PCM. DEALERSHIP HAS TO FIX.THEY HAVE TO HOOK UP DIESEL ENGINE TIMING EQUIPMENT TO TIME INJECTION PUMP TIMING CANT FIX AT HOME.

Posted on Oct 21, 2010

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1 Answer

P2121 and p2122


P2121 Code is throttle/pedal position sensor/switch D circuit range/performance
P2122 throttle/pedal position sensor/switch low circuit
Bad pedal maybe, does it return to idle?

Jun 05, 2012 | Cars & Trucks

1 Answer

Code P2509


Check that ths DTC P2509 ECM/PCM Power Input Signal Intermittent

Probably a bad connection to the engine computer. It's got two power feeds, switched/key and constant. The motor won't run without the switched key power on. Long story short, the computer can detect if the power leads aren't solid. That code should give the dealer something to look for. Before bringing it in check the battery terminals, all the fuses, all the relays, and the PCM connector itself (if it's easily accessable).

Also, according to the powertrain diagnostics manual, page 248, it's "Powerdown data lost error". Set condition: loss of voltage detected at the ECM for a calibrated amount of time.

If you don't trust your dealer to perform the diagnostics, I recommend splicing a volt meter into the following power pins on the ECM:
- Connector C2 (polarizing pins are at the bottom of the connector): 20, 30, and 40. Those need to be +12. Pins 21, 49, and 50 are the grounds.
- Run the voltmeter into the cab so you can watch it all the time.

Hope helps (remember rated this).

Jul 19, 2010 | 2004 Dodge Ram 2500

3 Answers

2004 dodge 2500 with cummins diesal engin light


your code is PCM/ECM power input signal intermittent. this is ussually a sign of a bad connection whether it be in a connector or a short or brake in a wire.

Jan 26, 2010 | 2004 Dodge Ram 2500

1 Answer

Loss of power just shuts off but starts back up


i have a 1998.5 24 valve and i have the same problem but myne wont start right away and my rpm gauge shots off then i loose power.

Jan 20, 2010 | 2005 Dodge Ram 2500 Truck

2 Answers

Engine codes for a 2008 dodge ram 2500 6.7 L codes are 0303-0513-2503-063D-and 2509 anyone help?


p0303=misfire on cyl 3
p0513=incorrect immobilizer key
p2503=charging system voltage low
p063d=charging system voltage high
p2509=PCM input signal intermittent
have a dealer check this one,it could be anything from the ignition to a alternator failing

Nov 22, 2009 | 2008 Dodge Ram Pickup 2500

3 Answers

How to fix a code p2509 problems on a dodge cummins deisel truck


Please check your ground wire they have a weak link there and have frequent problems on the ground curcit

Oct 24, 2009 | 2006 Dodge Ram 2500

1 Answer

Check engine light on 2001 Ram 3500 5.9l diesel


need To know the codes and a reason why they did not replace the fuel pump and only the lift pump

Jan 16, 2009 | 2001 Dodge Ram 2500 Truck

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