Jump to content
  • Sign In Changes:  You now need to sign in using the email address associated with your account, combined with your current password.  Using your display name and password is no longer supported.

 

  • If you are currently trying to register, are not receiving the validation email, and are using an Outlook, Hotmail or Yahoo domain email address, please change your email address to something other than those (or temporary email providers). These domains are known to have problems delivering emails from the community.

When accelerating it bucks, stock exhaust size

Guest Alex

By Guest Alex,
in The Garage

 Share

Recommended Posts

Guest Alex

Guest Alex

Posted
Posted

Well the Pathfinder is bein kinda silly again. When I give it to much throttle from a dead stop it starts bucking and then when it gets above 4000 rpms it stops. It does not do it from a kick-down only from a dead stop. I recently changed the plugs, fuel filter, plug wires, cap, and rotor, and it did not cure the problem. I figure it has something to do with the fuel system. It seemed to start happening when i ran a tank of 93 octane fuel through it. What octane gas should I be using I think the manual says 91+? Then what is the stock exhaust diameter, mine rusted off so I wanna get a new muffler and have the pipe ran. Possibly someone could recommend a cheap/good cat-back system. Thanks for your help

 

 

-Fitz

Link to comment
Share on other sites
Reido NPORA Regular

Reido

Posted
Posted

You say it does alright above 4000 rpms? That would seem to rule out fuel delivery problems since the engine will use more fuel at higher rpms assuming throttle position is the same. Your first step should be to check the error codes from the computer then go from there. Also it would help to know what year your Pathfinder is.

Link to comment
Share on other sites
hardwaretoad NPORA Old-Timer

hardwaretoad

Posted
Posted

He's runnin' a '90...

 

I've always used 87 octane in my Pathy with no obvious negative effects. As a matter of fact, most of it's life was in N.E. Nevada ~ they have 85 octane up there for "regular" grade. Due to the elevation (5000+ ft.), there's less "air", therefore you can get away with a lower octane rating than at sea level. -thnkboutit-

 

I simply had a local shop install an appropriate muffler & piping when mine went south. From what I've been reading here lately, I think Borla is the only one that has a complete "cat-back" bolt on system. :shrug:

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...