corolla/prism code p0441!

[johnholl]

1999 Prism. CODE pertains to canister purge valve flow incorrect. any suggestions as to the cause? Bad canister?, Purge Valve? Evap lines?Gas cap seems tight and working correctly. Cleared code by disconnecting bat. Code came back on in three days. Engine runs fine. BTW, where is the canister located? [email protected]

[ishop4less]

How many miles do you have this car? I am asking this because if you still have under warranty or not. Anyway that code is the code for EGR valve or EGR Modulator is bad. You said the engine runs fine, so I would suspect that EGR modulator is bad and the one is causing the check engine light on. Replacing this modulator is not that hard, just follow the old one where it should go. After you change the modulator you can just unplug EFI fuse in the fuse box, instead unpluggin the battery to clear the check engine code. Please let us know the result after you done this, so we can share with others what's going on, isn't it this forum for?

[ishop4less]

Gosh....sorry i looked at the wrong code, I thought i saw p0401, but i notice you put it p0441, so check the canister make sure is not clogged. Sorry again.

[johnholl]

Originally Posted by ishop4less

How many miles do you have this car? I am asking this because if you still have under warranty or not. Anyway that code is the code for EGR valve or EGR Modulator is bad. You said the engine runs fine, so I would suspect that EGR modulator is bad and the one is causing the check engine light on. Replacing this modulator is not that hard, just follow the old one where it should go. After you change the modulator you can just unplug EFI fuse in the fuse box, instead unpluggin the battery to clear the check engine code. Please let us know the result after you done this, so we can share with others what's going on, isn't it this forum for?

The car has 78,000 miles, and I am not the origional owner.. The code scanner indicated "canister purge valve flow", but they could be related. Be advised the car has the 1.8L engine, not the 1.6L. If it ever stops raining I will investigate the EGR Mod. thanks, John

[ishop4less]

I found this on Service bulletin: Sound similar to your problem

CONSUMER COMPLAINT: ODI Case Number: 10068530

Component: ENGINE AND ENGINE COOLING

Details: I AM WRITING REGARDING AN ISSUE WITH MY 2001 TOYOTA COROLLA. I RECENTLY HAD MY CHECK ENGINE LIGHT COME ON. I NEED TO REPLACE AN EMISSIONS CONTROL DEVICE IN MY CAR, A CHARCOAL CANISTER DUE TO IT BEING CLOGGED OR MAYBE A VACUUM LEAK. *AK I AM CONCERNED THAT THIS MAY BE A WIDE-SPREAD PROBLEM BECAUSE ON THE DAY THAT I HAD MY CAR FOR AN ESTIMATE, I MET ANOTHER PERSON AT THE TOYOTA SERVICE STATION WITH THE SAME ISSUE AND WHO ALSO HAD A 2002 TOYOTA COROLLA. HOWEVER, FORTUNATELY FOR HER SHE WAS STILL UNDER WARRANTY SO SHE DID NOT HAVE TO PAY FOR THE REPAIR. THE WARRANTY FOR THIS PART IS 3 YEARS OR 36,000 MILES. UNFORTUNATELY FOR ME, I WAS AT THE 42,000 MARK ON MILEAGE AND SO I WAS OUT OF WARRANTY. MY CONCERN IS HOW MANY CLOGGED CHARCOAL CANISTERS HAD TO BE REPLACED IN THE 1998-2002 MODEL OF A TOYOTA COROLLA. A FRIEND OF MINE DID CONTACT THE U. S. DEPARTMENT OF TRANSPORTATION, NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION AND FILED A REPORT REGARDING THE FAILURE ON THIS PART AND HOPE THAT OTHERS WOULD DO THE SAME. DO I AM DOING TI AS WELL. OVERALL, I ALSO FEEL THAT AN EMISSIONS CONTROL DEVICE SHOULD LAST LONGER THAN JUST TWO YEARS. MY FAMILY HAS OWNED SEVERAL DIFFERENT MODELS OF TOYOTA AUTOMOBILES OVER THE PAST 15 YEARS AND WE HAVE NEVER HAD TO REPLACE SUCH A DEVICE. THE TOYOTA COROLLA MODEL, BEING A MODEST CAR, SHOULD NOT REQUIRE TO REPLACE A $300 PART EVERY TWO YEARS THAT IS NEEDED TO KEEP OUR ENVIRONMENT CLEAN. I READ SOMEHWRE THAT WARRANTY ON EMISIIONS ARE 80,000 IS THIS CORRECT?