[Owen George]

Hi there! So I recently bought a 2003 ram 2500 with the 5.9 in it. The truck has a edge juice w attitude, a afe intake, a raptor pump by airdog, a straight pipe and a built 48re. Yesterday the truck gave me its first issue and I am completely clueless when it comes to the Common Rails (I just got out of a 12valve). Went to start the truck up yesterday morning and I didn’t hear the normal buzz of the pump which I found odd so I checked the fuse and it was fine. Started the truck up and it ran fine so I figured it was nothing. Pulled out of the driveway and went to put my foot in it a little and it started surging for a lack of better words. It was jumping and not wanting to get up and go like I was used to. I also noticed on my edge that right around 35% throttle and above was the only time it would do it. If I drive extremely nicely then it doesn’t seem to do it nearly as bad. I’m extremely new to the common rails so any help would be extremely welcomed. Thank you so much 🙂

 

[tryNto]

Do you have a psi reading for the lift pump?
It may be pumping enough for idle/low throttle, but not enough to drive normal.

 

[hillbilli]

If you didnt hear the fuel pump running, its probably not. The cp3 should be able to pull enough fuel for idle and such if its not running, but after that you are probably starving your injectors and cp3 which is bad. Turn the key on and verify that is is pumping fuel, you shouldnt need to start the truck for the fuel pump to kick on even with an airdog i beleive.

 

[rghavana]

Fuel quantity and quality are critical to HPCR, running properly.
I would first check/change fuel filter(s). Should run 3 micron filter and larger capacity water separator.
Raptor pump should have power feed and relay circuit, usually near drivers side battery, check wiring including ground.
You need to engage starter for 1-2 seconds, don't start engine, pump should run for 20 seconds or so.
like tryNto said really need a way to verify lift pump is working properly.

 

[Owen George]

Fuel quantity and quality are critical to HPCR, running properly.
I would first check/change fuel filter(s). Should run 3 micron filter and larger capacity water separator.
Raptor pump should have power feed and relay circuit, usually near drivers side battery, check wiring including ground.
You need to engage starter for 1-2 seconds, don't start engine, pump should run for 20 seconds or so.
like tryNto said really need a way to verify lift pump is working properly.

So through further testing I have to come to the conclusion that my raptor pump has stopped working. My next question would be what can I do to make the drive drive normal still. Also I hooked up my scan tool to read codes and I got these 2 codes; P2509, P0148.

 

[TWR]

Hi if the pump stopped working you need to fix the wiring or need a new pump asap. Cp3 pumps don't like not being fuel straved nor do injectors on the CR.

 

[Babin Farms]

P2509 DODGE Description When the ignition switch is turned "ON", the battery voltage is applied from the battery to the Powertrain Control Module (PCM)/Engine Control Module (ECM) through the main relay. In case that the ignition switch is turned "OFF", the ECM/PCM is supplied with power through the battery power input line to control the basic operation of the vehicle. The ECM/PCM set the OBDII code when the ECM/PCM Power Input is out of factory specifications.

P0148 DODGE Description The Fuel Control Actuator (FCA) is an electronically controlled solenoid valve. The ECM controls the amount of fuel that enters the high-pressure pumping chambers by opening and closing the FCA based on a demanded fuel pressure. When the FCA is opened, the maximum amount of fuel is being supplied to the fuel injection pump. Any fuel that does not enter the injection pump is directed to the cascade overflow valve. The cascade overflow valve regulates how much excess fuel is used for lubrication of the pump and how much is returned to the fuel tank through the drain manifold.

 

[rghavana]

P2509 is ECM power issue , since ECM controls fueling,including control of lift pump, I would be diagnosing/fixing that code first.
Usually battery or wiring issue is cause so need to make sure good batteries,12.6 +volts , good connections including grounds. Voltage between both batteries should be within 0.1-.3 volts of each other or suspect bad crossover cable.
B+ power connection on side of fuse box, engine side goes to ECM check that connection should be same voltage as battery power there is a fusible link in circuit to ECM so should check that for issues.
If they all check out good, then check wiring/connections on ECM including grounds.
Once that code is gone then clear codes see if P0148 comes back .

for 2003
P0148-HIGH PRESSURE COMMON RAIL (HPCR) CHECKSUM
When Monitored: While the engine is running.
Set Condition: A deviation between the fuel pressure set point and the actual fuelpressure.

POSSIBLE CAUSES
OTHERS DTC’S PRESENT
FUEL LEAKS
FUEL CONTROL ACTUATOR
FUEL PRESSURE SENSOR
CASCADE OVERFLOW VALVE
CHECK VALVE DAMAGED OR BLOCKED
FUEL RETURN LINES OBSTRUCTION, DAMAGE, OR DEBRIS.
LIFT PUMP FLOW
AIR IN FUEL SYSTEM
LEAKING FUEL INJECTORS OR HIGH PRESSURE CONNECTORS
PRESSURE LIMITING VALVE
HIGH PRESSURE FUEL PUMP
INTERMITTENT CONDITION