Question about 1997 Nissan Sentra

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Code 325 po-egrmalfunction

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This is the knock sensor coming on. P0325 OBD II Trouble Code this gives you an idea where to start. I suggest looking for a wire that is frayed or loose. I am sending a guide to find the sensor too. It is located just behind your fan on the engine block near to the air intake. 1991 1994 240sx code 34 knock sensor detonation sensor tutorial

Posted on Apr 18, 2014

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A knock sensor tells the engine computer when one or more of your engine's cylinders are "knocking", that is, exploding the air/fuel mixture in a way that delivers less power and can be damaging to the engine if prolonged.

Posted on Apr 18, 2014

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PO 325 DTC was indicated on the diagnostic machine when checked. though i have just PO 105, 401, 1301 but all these have been sorted now left with PO 325. Pls does this imply?


code p0325 refers to knock sensor1 bank1--circuit malfunction===causes--wiring--poor connection ---knock sensor.. Check wiring and connections are clean and tight or replace the knock sensor.. The knock sensor adjusts the air /fuel mixture for proper combustion and reads when there is detonation occurring in the cylinder( Rattling-tinny sound under acceleration)

Nov 13, 2013 | 2000 Toyota Camry

1 Answer

What is code 325 PO


Hi Kathy,here's a link to your code P0325.Here's also a video to watch.

Sep 27, 2013 | 2001 Nissan Altima

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Code number for o2 sensor voltage low


Forget to write it down?

Generic or Manufacturer?

There are 41 Generic O2 Codes

PO 131--bank 1 sensor 1
PO 137--bank1 sensor 2
PO 143--bank1 sensor 3
PO 151--bank2 sensor 1
PO 157--bank1 sensor2
PO 163--bank2 sensor 3

Nov 23, 2012 | 2009 Toyota RAV4

2 Answers

Error codes po 134 po 153 po 154 po 155 po 171 po 174


PO 134 = 02 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR1)
PO 153 =02 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
PO 154 =02 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1)
PO 155= 02 SENSOR HEATER CIRCUIT MALFUNCTION (BANK 2 SENSOR 1)
PO 171= SYSTEM TOO LEAN (BANK 1)
PO 174= SYSTEM TOO LEAN (BANK 2)
I WOULD SAY YOU HAVE FAULTY OXYGEN SENSORS CAUSING THE ENGINE TO RUN TOO LEAN REPLACE THEM AND YOU SHOULD BE BACK IN BUISNESS

Feb 23, 2011 | 2004 Suzuki Grand Vitara

1 Answer

I just had my valve cover gasket changed on my 2001 Nissan Frontier 2WD SE V6 3.3L on 2/13/11 and today my service engine light came on I took it to auto zone to have it plug up to find out the codes for...


yes if the mechanic was sloppy--any service theres a risk of screwin somethin else up--u need to hook it up to a tech II scanner for a data stream to obtain precise info-dont just go changin parts--1st look over engine to see any damages

Feb 19, 2011 | 2001 Nissan Frontier Crew Cab

1 Answer

I have a 95 Maxima that occasionally stalls when I come to a stop. The check engine light was on so I hooked it up to an OD2 sensor and it gave the following 7 codes: P 1320 - Distributor Signal...


Trying to clean the MAP sensor will damage it. Install a New Air filter and The Fuel filter, then replace the MAP sensor. Do not touch, or spray(compressed air or solvent) on the element when installing it. Have all of the OBD II Stored codes Deleted. Add a can of B&G 44K fuel additive to a full tank of fuel. The B&G is the best on the market, do not substitute. It is only available Through dealerships (Toyota). It will condition fuel pump and injectors. The ECU in your car is very dependable and rarely needs replacing. Always Replace cheapest parts first. Test drive the car and Then recheck The OBD II for new faults. The dimming of your lights before shut down was due to RPM of the engine dropping below 750 RPMs. Alternator will not produce voltage below 750 Rpms. 30 Amps at 14 Volts is required to run the engine.

Mar 03, 2017 | 1995 Nissan Maxima

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Knock sensor po 325 is faulty on my 2001 kia rio. engine light came on as soon as mechanic removed head and did a valve job on my car....help


have mech recheck the connection could have been disconnected or wiring damaged during valve job

Feb 01, 2010 | 2003 Kia Rio

1 Answer

I have 1998 Nissan Frontier with an engine light on. I paid a mechanic to put in a speed sensor and the light came back on the day after he put in the new part. The codes before he worked on the truck were...


the PO 325 code is for VSS vichicle speed sensor and PO500 is for a knock sensor,so you will need to see what the new code is to be able to help you, the engine power manegment is controled by both get it scanned by autozone or the mechanic that did the work and see if it's the same code, if it is you may have a short or an ecm going bad. let us know what codes you find.

Jun 13, 2009 | 1998 Nissan Frontier

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