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Re: PO325
Knock Sensor i circuit (Bank)
What can I do...
You can try this
Check the resistance of the knock sensor (compare it to factory specs) Check for broken/frayed wires leading to the sensor Replace the knock sensor
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you are dealing with 2 issues
code p 0325 refers to knock sensor (KS) 1 bank 1--circuit malfunction ====causes ---wiring ---poor connection ---KS
code p 0340 refers to camshaft position sensor(CMP) sensor A bank 1--circuit malfunction===causes wiring--- CMP sensor ---ECM
code p 0344 refers to CMP sensor A bank 1 --circuit intermittent===causes --wiring --poor connection---CMP sensor --ECM
check wiring and connections before replacing the CMP as the wiring may be the cause of all the codes
P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0325 Knock Sensor 1 Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
think you just need a new o2 sensor
P0325 NISSAN - Knock Sensor Circuit Malfunction Possible causes- Faulty knock sensor - Knock sensor circuit short to ground - Knock sensor circuit short to power - Knock sensor circuit open - Faulty Engine Control Module (ECM)
P0325 - Knock Sensor Circuit Malfunction Possible causes- Faulty knock sensor - Knock sensor circuit short to ground - Knock sensor circuit short to power - Knock sensor circuit open - Faulty Engine Control Module (very unlikely). P0139 - O2 Sensor Circuit Slow Response Bank 1 Sensor 2
Possible causes- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted - Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection - Faulty Rear Heated Oxygen Sensor Bank 1 - Inappropriate fuel pressure - Faulty fuel injectors - Intake air leaks may be faulty - Exhaust gas leaks
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