2001 Nissan Xterra - Page 8 - Answered Questions & Fixed issues

Your battery has nothing to do with these codes. Your vehicles computers have detected a malfunction or failure in the system. This triggers these codes and sets your check engine light. Below I have listed the code meanings and some repair solutions.

P1126 - Throttle Position (Narrow Range) Sensor Circuit Malfunction.

Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM.

Possible Causes For P1126:
- Harness or connectors (Throttle control motor relay circuit is open)
- Throttle control motor relay


P0325 - Knock Sensor Circuit Malfunction

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Powertrain Control Module (PCM) or Electronic Control Module (ECM).

Possible Causes For P0325:
- Knock sensor circuit short to ground.
- Knock sensor circuit short to power.
- Knock sensor circuit open.
- Damaged knock sensor.
- Damaged PCM or ECM

Possible Solutions:
- Repair or resecure harness or connector
- Replace knock sensor Bank 1 (Bank 1 if applicable)
- Replace PCM or ECM

The P0325 DTC is a very common problem with Nissan vehicles. On most Nissan vehicles the knock sensor is located on top of the engine block.

A new switch check Advanced Auto parts

Hello, inghamchris4 and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 2001 Nissan Xterra, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose your overheating 2001 Nissan Xterra

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Thanks for the vote, and good luck!

check for loose nut on wiper arm pivot under black plastic cap on wiper arm.fairly common problem on these.

may be a fuel pump problem

you could try disconnecting the car battery,wait a while and connect it back and see if it corrects its self

you need a new circuit board inside of the speedometer. nissan had some issues with those in your model year.

it`s a good idea to get a complete tune-up with 155k. but you can use a scanner to get a code to find the problem. I’m happy to help further over the phone at https://www.6ya.com/expert/kenneth_3efc1f8510674f04

It sounds like a loose ground wire, which one, I can't tell you. If its in the dash, there are ground wires connected to the car frame. You probably find it by looking under the drivers dash. It will be a wire connected to the frame by a screw or nut. Just tighten it up, and should solve the problem. also check the power plug to the gauges and make sure its tight. Best I can do.

look for a arrow on it ,its marked

oil change every 6000 miles and levels check and a full service every 12000miles

Inside your fuel tank. before changing it, make sure u check the pressure and CHECK fuel pressure regulator

It is most likely related the door blend motor or acutator motor.

you need a cat /cat convertor. it will be pretty expensive. the cat it self goes for around 500 big ones and than the labor to replace it.

think it means the mass air flow in the intake pipe not reading correct

Autozone will pull the trouble codes for free, and give you a print out and possible causes for the check engine light being on. Check for leaks around hose and pump if air is in the system turn the wheel all the way to the left and hold a few seconds than to the right and repeat a few times. Also check all the belts. loose belt will cause stiffness and other problems.

Have you checked power to the fuse when it happens. Start there.

Thank you fo using Fixya

For your 01 Nissan xterra V6 3.3L. The sensor is located underneath the air intake manifold on top of the engine block.

All the best!

nissan xterra codigo p0300 random misfire cual es el problema que devo de hacer para areglarlo

yes