Causes and Fixes Volkswagen P0441 Code: EVAP System Incorrect Purge Flow

[@alexr7833]

Very helpful video, very much appreciated!

[@eduardaslaurinavicius4249]

I replaced gas cap, purge valve, leak detection pump and charcoal canister and i still have this error. Can pcv valve cause it by any chance? As mine is not oem and was replaced as preventative maintenance.

[@rambotheg6980]

Yes PCV is possible. Could you already fix it? what was it?

[@BMWe-ed2tn]

@@rambotheg6980What I understand is the ECU opens the purge valve and then checks lambda for a slightly fat mix(as some air is replaced by fuel vapor it should go rich) A faulty pcv should not cause a p0441 unless the engine is running lean? Maby an evap line is clogged or air a getting into the evap circuit somehow?

[@diamanteideias6580]

​@@BMWe-ed2tnp

[@trethegreatestt9880]

Same boat and no matter what I do the code won’t go away

[@sgt.teacup4997]

Can we delete the charcoal filter, and what is needed to do this?

[@tedjohnson64]

Excellent tutorial!

[@mateuszhorbowy3737]

What if i replaced purge valve and after this i can smell a lot of benzine next to a car and still have p0441 code

[@stefanmarinkovic7491]

I've bought 2 N80 - p0441, one stuck closed, other one was working, my mechanic didn't tell me that canister might be clought up. I've replaced canister, with new N80 - I thought it is broken regardless of what a new part was - but it was bad/closed, so I changed for the first one and it started to work. Check if your N80 is good, check for tank cap, check for leaks, check for the pipe(from tank to canister - if the air can go through - one direction - from tank to canister, try to blow and air should pass smoothly) and that is it. Wish you luck. this is the report from scanner tool - tests Mode $06 report generated by Torque for Android ================================================ Vehicle VIN: Not present Vehicle Manufacturer: Unknown Vehicle Calibration ID: 1P0907115 0040 Test report: ------------------ MID:$01 TID:$83 - O2 Bank 1 Sensor 1 Max: 1.99882 Min: 0.3499 Test result value: 1.13094 PASS ---- MID:$02 TID:$07 Minimum sensor Voltage for test cycle(calculated) - O2 Bank 1 Sensor 2 Max: 0.44969V Min: 0V Test result value: 0V PASS ---- MID:$02 TID:$08 Maximum sensor Voltage for test cycle(calculated) - O2 Bank 1 Sensor 2 Max: 1.29906V Min: 0.44969V Test result value: 0.9494V PASS ---- MID:$02 TID:$81 - O2 Bank 1 Sensor 2 Max: 0.62074V Min: 0V Test result value: 0.61098V PASS ---- MID:$02 TID:$82 - O2 Bank 1 Sensor 2 Max: 1.29906V Min: 0.62074V Test result value: 0.6305V PASS ---- MID:$02 TID:$83 - O2 Bank 1 Sensor 2 Max: 0.1597V Min: 0V Test result value: 0.00329V PASS ---- MID:$21 TID:$84 - Catalyst Monitor Bank 1 Max: 65,535 Min: 4,096 Test result value: 8,302 PASS ---- MID:$3d TID:$80 - Purge Flow Monitor Test incomplete or dependant test failed -- MID:$3d TID:$82 - Purge Flow Monitor Max: 9.99393 Min: 0.09516 Test result value: 0.0979 PASS ---- MID:$41 TID:$85 - O2 Heater Monitor Bank 1 - Sensor 1 Max: 1,239.90002°C Min: 754.90002°C Test result value: 819.60004°C PASS ---- MID:$42 TID:$81 - O2 Heater Monitor Bank 1 - Sensor 2 Max: 2,232Ohm Min: 0Ohm Test result value: 168Ohm PASS ---- MID:$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:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 2 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS ---- MID:$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 ---- End of report.

[@TroySmith-w4q]

Great video bro!