Knock Sensor 1 Circuit Bank 1
2018-2025 Fiat Cronos 1.3L I4 Flex Firefly
Description
Malfunction in the knock sensor 1 circuit for Bank 1. The knock sensor detects engine detonation/pinging and allows the PCM to retard timing.
Symptoms
- Check Engine Light
- Reduced power (timing retarded)
- Possible pinging/knocking
- Poor fuel economy
Common Causes
- Faulty knock sensor
- Wiring damage
- Incorrect torque on sensor
- PCM failure
- Engine noise masking knock signal
Diagnostic Steps
- Test knock sensor resistance
- Inspect wiring and connector
- Check sensor mounting torque
- Monitor knock signal with scan tool
Repair Notes
Replace knock sensor. Torque to spec (important). Use correct sensor for application.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0325 on Other Vehicles
Fiat 124 Spider
2017-2020 1.4L I4 Turbo
Fiat 126p Maluch
1973-2000 0.65L I2 Air-Cooled
Fiat 126p Maluch
1987-2000 0.7L I2 Air-Cooled
Fiat 500
2012-2019 1.4L I4
Fiat 500 Abarth
2012-2019 1.4L I4 Turbo
Fiat 500 BR
2011-2020 1.4L I4 Flex Fire Evo
Fiat 500 PL
2007-2025 1.0L I3 Hybrid FireFly 70
Fiat 500 PL
2007-2025 1.2L I4 Fire 69
Common Questions
What does code P0325 mean on a 2018-2025 Fiat Cronos?
P0325 stands for "Knock Sensor 1 Circuit Bank 1". Malfunction in the knock sensor 1 circuit for Bank 1. The knock sensor detects engine detonation/pinging and allows the PCM to retard timing.
What are the symptoms of P0325 on a Fiat Cronos?
Common symptoms of P0325 include: Check Engine Light, Reduced power (timing retarded), Possible pinging/knocking, Poor fuel economy.
What causes P0325 on a 2018-2025 Fiat Cronos?
Common causes of P0325 include: Faulty knock sensor, Wiring damage, Incorrect torque on sensor, PCM failure, Engine noise masking knock signal.