Scanned my car and it threw a 0441 - Evap Emissions control system incorrect purge system.....


thats the charcol canester box right?


i know i had a problem with it before where the clip came undone andthe canester was hanging, im assuming the vacum hose got disconnected? correct? would this cause the motor to idle as if it had a vacumm leak?


- if this is the case am i loosing power...if so how much?


TIA Guys

 

Before you do ANYTHING, make sure you tighten your gas cap. The OBDII cars will run an EVAP test and it will fail if your gas cap is loose. The P0441 is the code that it will throw too if you fail to tighten your gas cap all of the way.

Start there and we will move from there.

 

The code list on the AutoTap site appears to be one of the best and most reliable. It shows:

This would indicate that one of the lines is plugged up, or the purge solenoid is not opening all the way. Wouldn't be a loose line or a vacuum leak. Perhaps the carbon in the canister is breaking down and plugging the line, or perhaps you have saturated the canister and liquid fuel is getting into the lines. If you had fuel coming in, it would sure mess up the A/F ratio when the EEC system is supposed to purge, but it doesn't purge during idle.

 

You will know if one of your lines is plugged up. Take a look at your tank..if your tank is caved in, then you have a problem with a line being plugged on the cannister.

We had a 99 Silverado come into the shop the other day and the cannister was plugged full of dirt and the tank was caved in because of it. Probably because it creates a strong vacuum inside the tank and sucks the walls in.

 

not the gas cap, i checked that hrm its soo cold out i dont want to tinker under the car......any other thoughts?

 

i am throwing a code p1441 right now..i think.......evap emissions control flow during non purge...what could this be? is it the canister too?....

 

also when i walk to the back of the car i can hear what sounds like a vacuum....its the same sound as air coming out of tires....know what i mean? anyone else have any input it would be greatly appreciated.............

 

Sounds like a vacuum leak. You need to inspect hoses and the canister which is behind a panel inside the wheel well by the gas filler.

 

is this robbing me of HP? if so how much are we talkin

 

Any vacuum leak can cause the engine to run less efficiently.

 

I'm throwing a 0441 code also. Could this be caused by me removing my emmisions equipment, or is it something directly related to the rear gas tank area?

 

If you removed items related to the EVAP system, then yes it will cause trouble codes.

 

What exactly might be contained in the EVAP system? The car has the EGR and all AIR removed. Is there anything I could replace to make the light stay off?