2001 Nissan Pathfinder check engine light


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2001 Nissan Pathfinder check engine light

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vano
New User

Sep 20, 2011, 4:40 PM

Post #1 of 5 (5038 views)

2001 Nissan Pathfinder check engine light	Sign In

So I bought a 2001 Nissan Pathfinder SE from a friend a few months ago (3.5 engine) . Has about 170000 mi on it. The check engine light was always on but I kind of ignored it. Now the car shakes sometimes (actually more like trembling) and sometimes the light blinks on and off too for a few minutes and then goes back to being on all the time.

I had a mechanic get the codes and here they are (his handwriting is bad so sorry if I make a mistake):

P1320 Ion signal primary

P1148 closed loop bank 1

P0306 cylinder 6 misfit detected

P0430 catalyst efficiency below threshold

P0135 02 heater

My question is which of these should be addressed first/are the most important? I don't know much about cars and this is my first one.

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Sep 20, 2011, 6:00 PM

Post #2 of 5 (5003 views)

Re: 2001 Nissan Pathfinder check engine light	Sign In

The first two things you should tackle are the misfire code and the primary ignition signal code. The misfiring has probably cooked bank 2's catalyst.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Sep 20, 2011, 6:07 PM)

vano
New User

Sep 21, 2011, 7:12 AM

Post #3 of 5 (4990 views)

Re: 2001 Nissan Pathfinder check engine light	Sign In

OK the primary ignition signal code is the P1320. Which one is the misfire code? How do I go about fixing them? Is it something I could do myself? I'd prefer to stay out of a shop.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 21, 2011, 7:25 AM

Post #4 of 5 (4986 views)

Re: 2001 Nissan Pathfinder check engine light	Sign In

That would be P0306. The 0/2 heater code isn't helping the cat either. You really need to resolve all these codes. Ignoring them has just made your problems worse.

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vano
New User

Sep 21, 2011, 7:37 AM

Post #5 of 5 (4986 views)

Re: 2001 Nissan Pathfinder check engine light	Sign In

Are these things I can fix myself or do I need to go to Nissan or a mechanic?

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