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I bought a 2007 Acura TL automatic not too long ago. The check engine light is on and the code is reading p2422 EVAP CVS valve stuck closed.
i did a bunch of research and can’t find a fix. I changed the purge valve sensor under the hood.
I went under the car and took off the vapor canister,
checked everything. Changed the pressure valve sensor that was on the vapor canister. The only thing I haven’t tried was replacing the shutoff valve filter and the entire vapor canister. I want to save some bucks and do it myself but I’m running out of options and might have to take it to a specialist.
If anyone has gone threw the same problem, I would appreciate some feed back.
Do you have a scan tool that can view live data? You need to view the tank pressure sensor readings. No idea if generic obd scanners allow that.
If you can view that, I can guide you through some checking.
If not replace the vent valve.
Confusing part is that vent valve is for some reason called "Dust filter". Additionally if you order brand new canister, it comes without the vent valve.
It is more or less cube, snaps in into the canister, has two vacuum ports and electrical connector.
It should be normally open, so if you try to blow into it, it should allow. Give it power and it should close.
If you want to test if first, be careful as moving / tapping it might get it to open and then "pass" the blowing test.
You can get used one from junkyard for ~$50 that probably works.
Also make sure that your canister didn't fall apart and charcoal didn't get into the lines.
Do you have a scan tool that can view live data? You need to view the tank pressure sensor readings. No idea if generic obd scanners allow that.
If you can view that, I can guide you through some checking.
If not replace the vent valve.
Confusing part is that vent valve is for some reason called "Dust filter". Additionally if you order brand new canister, it comes without the vent valve.
It is more or less cube, snaps in into the canister, has two vacuum ports and electrical connector.
It should be normally open, so if you try to blow into it, it should allow. Give it power and it should close.
If you want to test if first, be careful as moving / tapping it might get it to open and then "pass" the blowing test.
You can get used one from junkyard for ~$50 that probably works.
Also make sure that your canister didn't fall apart and charcoal didn't get into the lines.
I have to drive 35* miles tomorrow for work. Is it bad to drive if my CEL is reading p2422??
it’s a evap CVS valve closed shut. I think there might be some blockage in the tubes. Waiting for parts to fix the problem.
Wanted to know everyone’s thoughts on if I should drive it or not
So a while ago I installed a new canister and a new dust filter along with all new tubes. Check engine light is still on. Still reading p2422. Am I suppose to unplug the battery and restart the car or is there another problem that can be pulling that code?
So a while ago I installed a new canister and a new dust filter along with all new tubes. Check engine light is still on. Still reading p2422. Am I suppose to unplug the battery and restart the car or is there another problem that can be pulling that code?
get a code reader from amazon (bluetooth ones are fine too) and clear the code. If it comes back you have an issue from the wires coming from the evap unit you've replaced.
EVAP CVS on Dust Filter is OPEN as I checked it when I replaced the FTP Sensor.
BTW: this has also triggered a Code 77-01 (Functional Abnormalities of the Fuel Emissions or Auto Transmission) & disabled my SH-AWD
