2019 1500 Hemi Multiple Fault Codes

[iamtheskier]

Hey everyone, new to the forum, my Ram just threw a code with 34,000 miles on it.

C0604 - Chassis (I think this is active air dam related?)
P0204 - Powertrain Injector Circuit - Cylinder 4
P0441 - Powertrain Evaporative Emission Control System Incorrect Purge Flow

Owned the car for 1 year and 20,000 miles, only issue was a rough idle one time a few months ago and the 'shift to park' issue twice last summer. Otherwise no issues.

It seems strange to me that I would all of a sudden get three apparently unrelated codes? Possible wiring harness issue?

 

[Bsteiner36]

It looks like the P0441 is something you could search here on the forums I believe I have seen that one before. I might have had it on my own truck and it was something to do with the gas cap needing to be wiped off (In my specific case).

I have no idea about the other two.

 

[kapinallinen2]

Hey everyone, new to the forum, my Ram just threw a code with 34,000 miles on it.

C0604 - Chassis (I think this is active air dam related?)
P0204 - Powertrain Injector Circuit - Cylinder 4
P0441 - Powertrain Evaporative Emission Control System Incorrect Purge Flow

Owned the car for 1 year and 20,000 miles, only issue was a rough idle one time a few months ago and the 'shift to park' issue twice last summer. Otherwise no issues.

It seems strange to me that I would all of a sudden get three apparently unrelated codes? Possible wiring harness issue?

Or less than optimal ground connection.
I would do a proper! load test on the battery also.

C0604-ACTIVE AIR DAM CONTROL PERFORMANCE.

Possible Causes.

ACTIVE AIR DAM ACTUATOR POOR ELECTRICAL CONNECTION

ACTIVE AIR DAM OBSTRUCTED/BINDING

ACTIVE AIR DAM ACTUATOR LINKAGE DISCONNECTED/BINDING/BROKEN

ACTIVE AIR DAM ACTUATOR MOUNTING HARDWARE LOOSE OR MISSING

ACTIVE AIR DAM (AAD) ACTUATOR.



P0204-FUEL INJECTOR 4 CIRCUIT/OPEN.

Possible Causes.

OPEN OR HIGH RESISTANCE IN THE 12 VOLT SUPPLY TO THE FUEL INJECTOR

OPEN OR HIGH RESISTANCE IN THE FUEL INJECTOR CONTROL CIRCUIT

SHORT TO GROUND IN THE FUEL INJECTOR CONTROL CIRCUIT

FUEL INJECTOR COIL OPEN OR SHORT ACROSS THE COIL (RESISTANCE TOO HIGH OR TOO LOW)

FUEL INJECTOR PINTLE STICKING MECHANICALLY

FAULTY DRIVER INSIDE THE PCM.



P0441-EVAP PURGE SYSTEM PERFORMANCE.

Possible Causes.

FUEL TANK PRESSURE (FTP) SENSOR 5-VOLT SUPPLY OPEN/HIGH RESISTANCE

PURGE SOLENOID VACUUM LINE LEAKING OR BROKEN

PURGE SOLENOID VACUUM LINE OR PORT RESTRICTED/OBSTRUCTED

PINCHED/OBSTRUCTED LINE BETWEEN THE PURGE SOLENOID AND CANISTER

PINCHED/OBSTRUCTED LINE BETWEEN THE CANISTER AND FUEL TANK

FAULTY PURGE SOLENOID

FUEL TANK PRESSURE (FTP) SENSOR.

 

[iamtheskier]

It looks like the P0441 is something you could search here on the forums I believe I have seen that one before. I might have had it on my own truck and it was something to do with the gas cap needing to be wiped off (In my specific case).

I have no idea about the other two.

My truck didn't come with a fuel cap, is it supposed to have one??

 

[iamtheskier]

Or less than optimal ground connection.
I would do a proper! load test on the battery also.

C0604-ACTIVE AIR DAM CONTROL PERFORMANCE.

Possible Causes.

ACTIVE AIR DAM ACTUATOR POOR ELECTRICAL CONNECTION

ACTIVE AIR DAM OBSTRUCTED/BINDING

ACTIVE AIR DAM ACTUATOR LINKAGE DISCONNECTED/BINDING/BROKEN

ACTIVE AIR DAM ACTUATOR MOUNTING HARDWARE LOOSE OR MISSING

ACTIVE AIR DAM (AAD) ACTUATOR.



P0204-FUEL INJECTOR 4 CIRCUIT/OPEN.

Possible Causes.

OPEN OR HIGH RESISTANCE IN THE 12 VOLT SUPPLY TO THE FUEL INJECTOR

OPEN OR HIGH RESISTANCE IN THE FUEL INJECTOR CONTROL CIRCUIT

SHORT TO GROUND IN THE FUEL INJECTOR CONTROL CIRCUIT

FUEL INJECTOR COIL OPEN OR SHORT ACROSS THE COIL (RESISTANCE TOO HIGH OR TOO LOW)

FUEL INJECTOR PINTLE STICKING MECHANICALLY

FAULTY DRIVER INSIDE THE PCM.



P0441-EVAP PURGE SYSTEM PERFORMANCE.

Possible Causes.

FUEL TANK PRESSURE (FTP) SENSOR 5-VOLT SUPPLY OPEN/HIGH RESISTANCE

PURGE SOLENOID VACUUM LINE LEAKING OR BROKEN

PURGE SOLENOID VACUUM LINE OR PORT RESTRICTED/OBSTRUCTED

PINCHED/OBSTRUCTED LINE BETWEEN THE PURGE SOLENOID AND CANISTER

PINCHED/OBSTRUCTED LINE BETWEEN THE CANISTER AND FUEL TANK

FAULTY PURGE SOLENOID

FUEL TANK PRESSURE (FTP) SENSOR.

Wow, thank you for the detailed reply!!

I noted the codes and cleared them all for now, let's see if they just don't come back. The truck is running as smooth as ever so whatever happened was hopefully just a hiccup.

 

[kapinallinen2]

My truck didn't come with a fuel cap, is it supposed to have one??

No.