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So my 2005 Durango is has been having some issues lately. Last February I replaced the fuel pump, the pump went bad a few weeks ago, and the truck was running strange obviously due to the fact that it didn’t have good fuel pressure. Well it went into limp mode and threw 3 chassis codes, and a missfire code. So I replaced the pump with a new one and all was well. I also had a EVAP leak code as well a P0441 I believe, and when I changed the pump it appeared the filter was clogged with charcoal. So I replaced the pump and the charcoal canister, and the EVAP leak pump. Well all the codes were gone for about 24 hours, I didn’t even clear them, they went away themselves. So now when I start the car the odo says gascap, but it has a new Chrysler cap, it also has a cylinder 4 missfire code, and 3 chassis codes that have no meaning from what I can find. So I’m suspecting the computer is on its way out, the truck runs beautifully, so why would it say its missing, and the chassis codes seem strange to me, and it thinks the gas cap is off. So what do you guys think?
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The p0441 is gone since i changed the evap leak pump, charcoal canister, and fuel pump. I now have a cylinder 4 miss code, 3 unknown chassis codes, and the odo lights up gas cap when i turn the car on, the cap is a new chrysler cap. The truck runs fine, but i keep getting all these different codes. It seems strange that the car thinks there is a leak and tells me the cap is off, but has no leak codes at the moment, butwhen i did have the p0441 it never said the cap was off.
The p0441 can be set if the gas cap is loose or defective.
The gas cap makes the seal to the tank so the vapors run back
to the evap system.The computer sees a problem setting p0441.
which could be a simple gas cap or evap system. That hole thing
is tied together. For the p0304 try swapping coils with another
cylinder to see if the problem moves.Also how old are the plugs?
Can you post all the codes you have?Ok maybe this will clear things up…
In February of 2012 I replaced the fuel pump.
Since June I had an EVAP leak code, P0441
-I ignored this due to the fact that I, at the time had an aftermarket gas cap.2 weeks ago the 6 month old fuel pump went bad.
-I again replaced the fuel pump, this time with an OEM unit.
-when this fuel pump went bad I had codes…
P0301, C3101, C3404, C0100, and yes, the P0441
-Truck ran just the way it should after the new pump was in.
-I suspected the missfire code, and the 3 chassis codes were due to the pump going out.
-When changing the pump I noticed the filter was clogged with charcoal.The CEL was still on with the P0441…
3 days ago…
-The charcoal canister was replaced, along with the EVAP Leak detection pump.
-CEL WENT AWAY, NO P0441yesterday…
-The CEL came back on, the codes present this time were…
-P0304, C1704, C0004, and C0100
-Also, the ODO lights up gascap when I start the car, which it has never ever done before. The gas cap is a NEW chrysler cap.This leads me to believe the computer is messed up, I have the 6600 page service manual for this truck, and I cannot find those particular chassis codes anywhere.
I just want to see what everyone`s thoughts were before I shell out the cash for a new computer.
Thanks Everyone!
c1704- http://engine-codes.com/c1704.html
this is the only code I could find.That`s why I’m thinking computer, it just doesn’t make any sense, there isn’t even a sensor in the right rear that I can think of, I don’t have tire pressure monitoring or anything. All I can say is that the truck runs perfect, no miss what so ever. I’m going to see if there’s any way to test the computer tomorrow.
what about paying dodge an hours labor for the diagnostic.
This will confirm the computer is the problem.I was thinking about doing that, however I know a former Chrysler mechanic that has his own place now, but he knows everything about my car, so I think I will give him a call tomorrow. A new computer is $200 and it comes programmed to your VIN and mileage. So it isn’t too bad, but it would be nice to confirm that’s the issue.
I would like to see you confirm so you don’t spend
the coin for nothing. Give your buddy a call. 🙂
keep us posted on your progress.Ok New information has come up.
I decided to scan the car once more today, and run a diagnostic test with my scan tool.
these are the results…
Current Fault Log
——————
P0457: Evaporative Emission Control System Leak Detected (fuel cap loose/off)
P0440: Evaporative Emission Control System
P0441: Evaporative Emission Control System Incorrect Purge Flow
P004B: null
P3194: null
P3094: nullPending Fault Log
——————
ECU reports no pending faultsHistoric Fault Log
——————
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
—————————————————-
ECU reports no other fault codes loggedEnd of report.
Test report:
——————
MID:$01 TID:$91
– O2 Bank 1 Sensor 1
Max: 655.34998% Min: 0.45%
Test result value: 1.21%
PASS
—-
MID:$02 TID:$07
Minimum sensor Voltage for test cycle(calculated) – O2 Bank 1 Sensor 2
Max: 0.196V Min: 0V
Test result value: 0.196V
PASS
—-
MID:$02 TID:$08
Maximum sensor Voltage for test cycle(calculated) – O2 Bank 1 Sensor 2
Max: 65.535V Min: 0.705V
Test result value: 0.745V
PASS
—-
MID:$05 TID:$91
– O2 Bank 2 Sensor 1
Max: 655.34998% Min: 0.22%
Test result value: 1.01%
PASS
—-
MID:$06 TID:$07
Minimum sensor Voltage for test cycle(calculated) – O2 Bank 2 Sensor 2
Max: 0.196V Min: 0V
Test result value: 0.196V
PASS
—-
MID:$06 TID:$08
Maximum sensor Voltage for test cycle(calculated) – O2 Bank 2 Sensor 2
Max: 65.535V Min: 0.705V
Test result value: 0.705V
PASS
—-
MID:$21 TID:$92
– Catalyst Monitor Bank 1
Max: 0.59% Min: 0%
Test result value: 0.07%
PASS
—-
MID:$22 TID:$92
– Catalyst Monitor Bank 2
Max: 0.59% Min: 0%
Test result value: 0.17%
PASS
—-
MID:$31 TID:$93
– EGR Monitor Bank 1
Max: 75Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$31 TID:$94
– EGR Monitor Bank 1
Max: 255Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$31 TID:$95
– EGR Monitor Bank 1
Max: 227.67999% Min: 342.66998%
Test result value: 327.92999%
FAIL
—-
MID:$31 TID:$96
– EGR Monitor Bank 1
Max: 227.67999% Min: 342.66998%
Test result value: 325.17999%
FAIL
—-
MID:$39 TID:$87
–
Max: 10,000ms Min: 0ms
Test result value: 10,010ms
FAIL
—-
MID:$3a TID:$87
– EVAP Monitor (cap off)
Test incomplete or dependant test failed
—
MID:$3c TID:$85
– EVAP Monitor (0.040″)
Max: 100minute Min: 0minute
Test result value: 0minute
PASS
—-
MID:$3c TID:$86
– EVAP Monitor (0.040″)
Max: 4,200minute Min: 0minute
Test result value: 0minute
PASS
—-
MID:$3c TID:$90
– EVAP Monitor (0.040″)
Max: 4,300minute Min: 12minute
Test result value: 30minute
PASS
—-
MID:$3d TID:$83
– EVAP Monitor (0.020″)
Max: 65,535Bool Min: 1Bool
Test result value: 0Bool
FAIL
—-
MID:$3d TID:$84
– EVAP Monitor (0.020″)
Max: 100.00641% Min: 0.05494%
Test result value: 0.02136%
FAIL
—-
MID:$41 TID:$97
– O2 Heater Monitor Bank 1 – Sensor 1
Max: 320°C Min: 0°C
Test result value: 75°C
PASS
—-
MID:$41 TID:$98
– O2 Heater Monitor Bank 1 – Sensor 1
Max: 655,350ms Min: 120,000ms
Test result value: 655,350ms
PASS
—-
MID:$42 TID:$97
– O2 Heater Monitor Bank 1 – Sensor 2
Max: 320°C Min: 0°C
Test result value: 75°C
PASS
—-
MID:$42 TID:$98
– O2 Heater Monitor Bank 1 – Sensor 2
Max: 655,350ms Min: 120,000ms
Test result value: 655,350ms
PASS
—-
MID:$45 TID:$97
– O2 Heater Monitor Bank 2 – Sensor 1
Max: 320°C Min: 0°C
Test result value: 70°C
PASS
—-
MID:$45 TID:$98
– O2 Heater Monitor Bank 2 – Sensor 1
Max: 655,350ms Min: 120,000ms
Test result value: 529,600ms
PASS
—-
MID:$46 TID:$97
– O2 Heater Monitor Bank 2 – Sensor 2
Max: 320°C Min: 0°C
Test result value: 65°C
PASS
—-
MID:$46 TID:$98
– O2 Heater Monitor Bank 2 – Sensor 2
Max: 655,350ms Min: 120,000ms
Test result value: 655,350ms
PASS
—-
MID:$98 TID:$5d
–
Max: 38,896 Min: 6,499
Test result value: 36,611
PASS
—-
MID:$a2 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a2 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a3 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 2 Data
Max: 65,535Count Min: 0Count
Test result value: 1Count
PASS
—-
MID:$a3 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 2 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a4 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 3 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a4 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 3 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a5 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a5 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a6 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a6 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a7 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a7 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a8 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 7 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a8 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 7 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a9 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles – Misfire Cylinder 8 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$a9 TID:$0c
Misfire counts for last/current driving cycles(calculated) – Misfire Cylinder 8 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
—-
MID:$e1 TID:$87
Manufacturer defined MID –
Max: 10,000ms Min: 0ms
Test result value: 0ms
PASS
—-End of report.
So now it has no chassis codes, but the 3 fault codes that dont have to do with the evap system dont seem to be in the service manual either. and the EGR system has failed the test, but the misfires have passed now. Now im really confused. And the EVAP Leak detection pump is new, so I dont know why it is failing now.
I won’t pretend to know about Dodge trucks and their EVAP system, but Toyotas have had their issues with bad vacuum switching valves by their charcoal canisters, and the canisters becoming fuel soaked by people who keep filling up the tank when the automatic switch shuts off the pump handle (not that you have this problem). What I would inspect are all of the EVAP lines, if possible with smoke. The gas cap code leads me to believe something is leaking in the fuel filler system somewhere, perhaps the vent has a ruptured line or a bad VSV somewhere….
Just my 2 cents…
-Karl
Yes, that is one of the things I had suspected when I got the evap codes in June, this year Durango and some others have a recall where the inlet valve doesn’t close/open all the way when you fill it up, and it overfills, and floods the canister. Which is why I think my fuel filter had charcoal in it when I changed the pump. I did inspect all the lines on the top of the tank, and they all looked good at the time. I don’t fill this truck up all the way because if I do it will overfill and spray gas everywhere. The charcoal canister is new and I don’t want this one to get ruined. And in order to fix the bad inlet valve you have to replace the tank and filler neck which is a nice $750 in parts. It was replaced once under warranty but is faulty once again, and now that they have replaced the parts once, they won’t again, plus its out of warranty anyways.
In my opinion I think your scan tool is a little flakey and maybe not 100% compatible with your truck. Even a factory scan tool will only test the pump operation and the ability to hold a vacuum it won’t tell you where the leak is.
The best way I know of to check for evap leaks is with a smoke machine. Now I know that most don’t have one in their possession but that’s the proven way to test for leaks.
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