2005 G35x

I put this in a different thread yesterday, but it is some sub forum that doesn't get a lot of attention and time is of the essence (in my case).
I am getting a P0455 error code and I'm fairly certain it isn't my gas cap. I don't smell gas ever and my engine isnt knocking. I'm thinking about replacing the EVAP vent control valve, but would like to spend as little $$$ as possible. Will this work?



FYI I have retightened and reset the code 4 times and it comes back 45 minutes later like clockwork. I have also purchased a new gas cap (though I'm starting to think stant makes crap).

 

i too got this once but it was in fact my gas cap

 

Nissan actually has a redesigned one that is supposed to work better. The new part number is 14935-JF00B. I got an after market one last year and the stupid code is coming back now.

 

Picked mine up at a NIssan dealer 150 + 10minute installation. you can see the difference on the solenoid, its bigger and on the out side of the valve,unlike the old one that incorporated everything inside..... this ones under the right rear wheel,somebody on the forum has a good diy on it.

a week later I got a P0477 code evap cannister purge control solenoid valve
this one was a bit pricey as well 250.00, easy installation at rear of motor, right under the plastic cover another 10 minute job went to auto zone and cleared the codes no problems


both parts were dealer only......

 

its too bad there was not a recall for rthis

 

yesss mahmm obdII code p0455 evap emiss large leak

remedy:
replace gas cap to oem nissan $27.50
clear code
fill fuel tank to 1/2 way- NYC residents $3.59 for midtown
wait-out code for at least 60+ miles or so
check for fuel pressure
-loosinging gas cap
no code no worries so far

 

in most cases ive seen this code. its almost always ONE of the valves assuming the gas cap is working.

These are open or close solenoids, 2 pin connectors, if you apply 12v to them you should hear the solenoid click ONCE. If it doesn't click or clicks repeatedly then you found your problem. That is the CHEAP way to do it, because on some cars there are 3-4 different valves. One coming into the engine from the tank, one from the engine to the tank and one at the canister itself.

I never did a nissan valve yet, only VW and toyotas.

 

p0455 remedy
yesss mahmm obdII code p0455 evap emiss large leak

remedy:
replace gas cap to oem nissan $27.50
clear code
fill fuel tank to 1/2 way- NYC residents $3.59 for midtown
wait-out code for at least 60+ miles or so
check for fuel pressure
i/m readienesss is not ready
-loosinging gas cap
no code no worries so far 187.3 miles DOMO

 

just because you dont have the code doesn't mean you fixed it.

Your i/m readiness has to be ready to fully say your code isn't there.


evap emission testing on your car is very random. Pending on your drive cycle, sometimes it triggers the test right away and sometimes it takes months. When it does test it and if it does pass it will say your I/M is ready. So you have to wait for it to do the test. This isn't like other failing sensors because its not always monitored. This is one of the LEAST important emission systems testings but at times can be the most annoying to get to pass, 2nd to last would be EGR related faults.

 

if you go on rockauto.com the vap canister valve isn't that much.. I bought mine on there and my light hasn't come back and it's been 4 months and 8k miles!