p0455 and p1448: FIXED.
02-18-2006, 07:40 AM
#1
Banned
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: 1600 Pennsylvania Ave, Wash. DC
Posts: 132,420
p0455 and p1448: FIXED.
The codes are for an evap air valve failure. You'll need to buy a new Evap Canister Purge Valve from Nissan to fix the problem.
Here's what you have to do:
1) Get under the car behind the driver's side rear wheel and you'll see a black, plastic square box with the purge valve (it has a plug and a hose connected) and two hoses connected to it. There's three bolts holding the box in place. 2) Disconnect the three hoses and the plug and unscrew the three bolts. To drop the box, pull the rear of it towards the driver's side outside of the car and pull it back towards the rear (there's two pins holding it in place).
3) Once it's out, you'll see two bolts holding the purge valve in place. You definitly want to spray them with WD-40 and let them soak for 15 minutes (trust me! I didn't and snapped both bolts. Used JB weld and tie-straps to put the damn valve back in place). Be careful unscrewing the bolts.
4) Once the bolts are unscrewed, you can pull out the valve. I had to pry it out, so expect it to fight you. After that, just put the new valve in and put it all back together.
I noticed that I regained my power, my engine was smooth again, and the annoying hissing noise went away. The part costs around 85 bucks and you can only get it through Nissan.
(mods: put this in the How-To section please)
Here's what you have to do:
1) Get under the car behind the driver's side rear wheel and you'll see a black, plastic square box with the purge valve (it has a plug and a hose connected) and two hoses connected to it. There's three bolts holding the box in place. 2) Disconnect the three hoses and the plug and unscrew the three bolts. To drop the box, pull the rear of it towards the driver's side outside of the car and pull it back towards the rear (there's two pins holding it in place).
3) Once it's out, you'll see two bolts holding the purge valve in place. You definitly want to spray them with WD-40 and let them soak for 15 minutes (trust me! I didn't and snapped both bolts. Used JB weld and tie-straps to put the damn valve back in place). Be careful unscrewing the bolts.
4) Once the bolts are unscrewed, you can pull out the valve. I had to pry it out, so expect it to fight you. After that, just put the new valve in and put it all back together.
I noticed that I regained my power, my engine was smooth again, and the annoying hissing noise went away. The part costs around 85 bucks and you can only get it through Nissan.
(mods: put this in the How-To section please)
02-18-2006, 10:07 AM
#2
Supporting Maxima.org Member
Join Date: Feb 2005
Location: Tennessee
Posts: 215
I am glad you got yours fixed, but I replaced mine about three weeks ago and the light is still on... after clearing the code, etc! and still engine isn't as strong as it was, and I am only gettin 21mpg... Used to get 24mpg, also replace the gas cap. Still don't know what the problem could be!
02-18-2006, 12:08 PM
#4
Banned
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: 1600 Pennsylvania Ave, Wash. DC
Posts: 132,420
Originally Posted by soonerfan
hey
i just wanted to post in george's first ever post in the 5th gen forum..and WOW, its a useful thread
i just wanted to post in george's first ever post in the 5th gen forum..and WOW, its a useful thread
02-18-2006, 12:09 PM
#5
Banned
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: 1600 Pennsylvania Ave, Wash. DC
Posts: 132,420
Originally Posted by darrick04
I am glad you got yours fixed, but I replaced mine about three weeks ago and the light is still on... after clearing the code, etc! and still engine isn't as strong as it was, and I am only gettin 21mpg... Used to get 24mpg, also replace the gas cap. Still don't know what the problem could be!
02-19-2006, 06:52 AM
#7
Don't forget the charcoal canister, if you are getting EVAP Very Small Leak codes, more than likely your charcoal canister is cracked.
P0455 is EVAP Gross Leak, prolly your vent valve was stuck open.
P0455 is EVAP Gross Leak, prolly your vent valve was stuck open.
02-19-2006, 07:06 AM
#8
Banned
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: 1600 Pennsylvania Ave, Wash. DC
Posts: 132,420
Originally Posted by nismo_star
Don't forget the charcoal canister, if you are getting EVAP Very Small Leak codes, more than likely your charcoal canister is cracked.
P0455 is EVAP Gross Leak, prolly your vent valve was stuck open.
P0455 is EVAP Gross Leak, prolly your vent valve was stuck open.
02-19-2006, 07:06 AM
#9
Supporting Maxima.org Member
Join Date: Feb 2005
Location: Tennessee
Posts: 215
Ok, it isn't a small leak code, it is a large leak! And how do you know if the vent valve is "Stuck open"? Since I swapped out the old canister with the new one, I haven't seen a performance improvement, and also haven't seen the code go away!
P0455 - EVAP Control System Gross Leak
P0455 - EVAP Control System Gross Leak
02-19-2006, 07:42 AM
#10
Banned
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: 1600 Pennsylvania Ave, Wash. DC
Posts: 132,420
Originally Posted by darrick04
Ok, it isn't a small leak code, it is a large leak! And how do you know if the vent valve is "Stuck open"? Since I swapped out the old canister with the new one, I haven't seen a performance improvement, and also haven't seen the code go away!
P0455 - EVAP Control System Gross Leak
P0455 - EVAP Control System Gross Leak
02-19-2006, 08:43 PM
#11
Supporting Maxima.org Member
Join Date: Feb 2005
Location: Tennessee
Posts: 215
my SES went off again, it does that a lot, but I am almost positive it will be back on this week.. and that's why I replaced the valve first, it was the cheaper of my options. and yet me, nor a mechanic can find a hole in the system or anything loose. dunno what else there is to check!
03-05-2006, 09:01 AM
#12
Newbie - Just Registered
Join Date: Mar 2006
Posts: 10
My SES light is glowing. I got it checked at Auto ZOne and got the code. Code is P1456. I checked the list and it means EVAP control system small leak (positive Pressure) No idea what this means. Can anybody help...
03-05-2006, 04:24 PM
#13
Senior Member
Join Date: Jul 2002
Posts: 2,836
Originally Posted by schadaga
My SES light is glowing. I got it checked at Auto ZOne and got the code. Code is P1456. I checked the list and it means EVAP control system small leak (positive Pressure) No idea what this means. Can anybody help...
07-22-2011, 11:09 AM
#14
Newbie - Just Registered
Join Date: Apr 2009
Posts: 1
Time it will take to DIY install new Evap Canister Purge Valve and EVAP cannister ?
The codes are for an evap air valve failure. You'll need to buy a new Evap Canister Purge Valve from Nissan to fix the problem.
Here's what you have to do:
1) Get under the car behind the driver's side rear wheel and you'll see a black, plastic square box with the purge valve (it has a plug and a hose connected) and two hoses connected to it. There's three bolts holding the box in place. 2) Disconnect the three hoses and the plug and unscrew the three bolts. To drop the box, pull the rear of it towards the driver's side outside of the car and pull it back towards the rear (there's two pins holding it in place).
3) Once it's out, you'll see two bolts holding the purge valve in place. You definitly want to spray them with WD-40 and let them soak for 15 minutes (trust me! I didn't and snapped both bolts. Used JB weld and tie-straps to put the damn valve back in place). Be careful unscrewing the bolts.
4) Once the bolts are unscrewed, you can pull out the valve. I had to pry it out, so expect it to fight you. After that, just put the new valve in and put it all back together.
I noticed that I regained my power, my engine was smooth again, and the annoying hissing noise went away. The part costs around 85 bucks and you can only get it through Nissan.
(mods: put this in the How-To section please)
Here's what you have to do:
1) Get under the car behind the driver's side rear wheel and you'll see a black, plastic square box with the purge valve (it has a plug and a hose connected) and two hoses connected to it. There's three bolts holding the box in place. 2) Disconnect the three hoses and the plug and unscrew the three bolts. To drop the box, pull the rear of it towards the driver's side outside of the car and pull it back towards the rear (there's two pins holding it in place).
3) Once it's out, you'll see two bolts holding the purge valve in place. You definitly want to spray them with WD-40 and let them soak for 15 minutes (trust me! I didn't and snapped both bolts. Used JB weld and tie-straps to put the damn valve back in place). Be careful unscrewing the bolts.
4) Once the bolts are unscrewed, you can pull out the valve. I had to pry it out, so expect it to fight you. After that, just put the new valve in and put it all back together.
I noticed that I regained my power, my engine was smooth again, and the annoying hissing noise went away. The part costs around 85 bucks and you can only get it through Nissan.
(mods: put this in the How-To section please)
Thread
Thread Starter
Forum
Replies
Last Post
Maxima_Joe
4th Generation Classifieds (1995-1999)
16
11-25-2015 08:19 AM