P1456 code for SERVICE ENGINE SOON - Nissan Forum

 
LinkBack Thread Tools Display Modes
post #1 of 4 Old Nov 27th, 2008, 10:07 PM Thread Starter
NissanForums Newbie
 
Join Date: Nov 2008
Posts: 2
P1456 code for SERVICE ENGINE SOON

My 2003 Pathfinder LE has 44400 miles in it recently the ServiceEngine light was turned on and I have tried to properly secure the fuel cap and filled the fuel tank,despite that the SERVICE ENGINE SOON LIGHT was sitll on.
Subsequenlty I took the car to a local Auto Part store the Engine code is P1456.
Few days later the light turned off but again about 4 days ago while I was driving on a rough road with fuel indicator showing more then half is full the SERVICE ENGINE SOON light again turned on and now it is the same CODE P1456.
What I need to do now regarding the emission system?
Change the fuel cap or other option?
I would highly appreciate input in this regard.
Thanks.
Sponsored Links
Advertisement
 
post #2 of 4 Old Nov 29th, 2008, 03:08 PM
Nissan Enthusiast
 
Join Date: Jun 2008
Posts: 49
Could be one of the following (if equipped):
Fuel filler cap, vacuum connection, fuel tank, fuel tank pressure sensor, evaporative bypass solenoid, evaporative two way valve, evaporative control canister vent shut valve, evaporative control canister and evaporative purge control solenoid.
The code just refers to the fuel system not being able to contain/dispose fuel vapor according to the ECUs programming.
Because of the complexity of the system, it may take a couple of hours and some specialized equipment to diagnose the cause.
Some of the components listed can be pricey, so be sure the right one is replaced.
You may get lucky by replacing just the gas cap.

Good luck!
post #3 of 4 Old Nov 29th, 2008, 11:57 PM Thread Starter
NissanForums Newbie
 
Join Date: Nov 2008
Posts: 2
Thanks for your kind advice.
Yesterday I have cleaned twicethe fuel cap and the edges of the fuel tank where the cap fits,and surprisingly this evening the SERVICE ENGINE SOON light has spontaneoulsy turned off.
post #4 of 4 Old Nov 30th, 2008, 09:02 AM
Sorta-Newbie
 
GimmieSumMo72's Avatar
 
Join Date: Nov 2008
Location: Edison, NJ
Posts: 15
throw some dry gas in your tank... should help with the vapor issue.

'07 Pathfinder SE Off Road - Nismo CAI | Nissan Navi Docking Station w/ Garmin Nuvi 750 | Custom Engine Cover
'04 Frontier SC - Traded in
'96 328i & 740iL
'89 Pathfinder SE-V6 - Donated to charity
GimmieSumMo72 is offline  
Reply

  Nissan Forum > Truck & SUV > Pathfinder

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Nissan Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On