Question about 1999 Nissan Maxima
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Posted on Jan 02, 2017
The two codes seem to be related. The P0325 description is knock sensor circuit malfunction and the P1320 is ignition signal - circuit malfunction.
I'll summarize and then give links on more detailed articles I found. Basically the P0325 refers to the knock sensor and associated wiring. The P1320 refers to the ignition coil and wiring. Check the sensor, coil, and associated wiring.
I found some great articles:
P0325 - http://www.obd-codes.com/p0325
P1320 - http://autorepair.about.com/library/a/1i/bl039i.htm
Posted on Dec 12, 2008
P1320 Ignition Signal
Signal wire from distributor
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
O2 senor ( The one before the cat converter )
P0300 Random/Multiple Cylinder Misfire Detected
The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. The computer can also normally identify the specific cylinder in which the misfire has occurred. A misfire is nothing more than a lack of combustion, which can be caused by poor fuel quality or metering, low compression, lack of spark or unmetered air entering the engine. There are other possible, less obvious causes as well, such as uncommanded Exhaust Gas Recirculatin (EGR), flow. When the misfire monitor detects a misfire, it will trigger the check engine light with the specific cylinder number as the last digit in the P030X code. For instance cylinder 1 misfire is P0301, cylinder 2 is P0302 etc. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory.
Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect fuel pressure
EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues
Posted on Apr 13, 2009
P0136 indicates a bad O2 sensor. This reports poor emission performance back to the car's PCM (computer)
P0325 indicates a bad "Knock" sensor which would adversely effect drivability as far as performance is concerned. Only way to fix these 2 problems is replacement of the 2 components.
Posted on Nov 03, 2009
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