P2509 code - TheDieselGarage.com
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post #1 of 3 (permalink) Old 09-05-2009, 11:19 PM Thread Starter
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P2509 code

My check engine light came on this morning and i checked for codes and it had a p 2509. Anyone had this? I know its something to do with power to the computer. How can this be fixed?

07 2500 5.9 4x4, automatic, diablosport powerpuck, gutted stock intake with K&N filter, 2" leveling kit and i dont kno where that dang silencer ring went. More to come... Exhaust, CFM+, Predator stack, tires and wheels when the money permits

When you get done powerstrokin your duramax only the best is left CUMMINS
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post #2 of 3 (permalink) Old 09-08-2009, 03:43 PM
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Check this thread. Dtc p2509

Tom
2004.5 Dodge 2500 QC/LB - Goerand 48RE, 4.10's, AFE Stage II, Magnaflow 5" TBE w/6" tip, Smarty TNT/REVO, PacBrake, ATS Manifold, ATS Triple Lok Commander, ISSPRO EGT, Trans, Boost on the pillar, FASS 150, 35X12.50 Toyo M/T's on '06 wheels, Mag/Hytec front/rear diff covers and trans pan, Full Recon Lighting, Prodigy Brake Controller, Silverstars, WeatherGuard Toolbox, BackRack, Kenwood Radio w/ 2 MTX Thunder 4500 subs, Sirius, CompuStar Alarm/Remote Start, Husky Floormats


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2007 Honda Foreman 500 ES - Rack bag, gun racks, trailer hitch, Cycle Country plow, 27" ITP's on ITP Delta Steel Wheels
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post #3 of 3 (permalink) Old 09-08-2009, 04:32 PM
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Possible Causes
POOR CONNECTIONS AT THE BATTERIES
LOW BATTERY VOLTAGE
OPEN FUSED B+ TO ECM
OPEN GROUND CIRCUIT
BATTERY + SHORTED TO OTHER CIRCUITS
RETURN CIRCUIT SHORTED
BATTERY + SHORTED TO GROUND
INTERMITTENT CONDITION

I checked my Batteries, while they were a little low they were not the problem.. I've been having a problem with one my EGT Gauge and have concluded that there was enough of a Voltage short and it caused my Code.. It still crackles and I haven't been able to find a new gauge around here to replace it, but After clearing the code it hasn't come back.. I vaguely remember as I had the truck in the Key-On position the Electrical Crackle was louder than normal when I got the code...

2007 Dodge 3500 MegaCab Laramie CTD 4x4 Patroit Blue Just a bunch of Go fast parts and programing
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