P0432moderate severityPowertrain
Main Catalyst Efficiency Below Threshold (Bank 2)
on 2022 Rivian EDV 500 Dual Motor AWD (EDV) · AWD
What this code means
The catalytic converter on bank 2 is not cleaning the exhaust as well as it should. This usually means the catalyst has degraded over time or an upstream problem is affecting it.
Symptoms
- Check engine light on
- Failed emissions test
- Slight loss of fuel economy
Common causes
- Worn or failed catalytic converter (bank 2)
- Faulty downstream oxygen sensor
- Exhaust leak near sensors
- Engine misfire or rich/lean condition
Diagnostic steps
- Scan for other codes first (misfire, fuel trim)
- Check for exhaust leaks around sensors
- Compare upstream and downstream O2 sensor readings
- Replace catalytic converter if sensors are good
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Other Powertrain codes on this vehicle
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0026
Intake Valve Control Solenoid Circuit Range/Performance Bank 1
P0027
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1
P0028
Intake Valve Control Solenoid Circuit Range/Performance Bank 2
P0029
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2
P0033
Turbocharger/Supercharger Bypass Valve Control Circuit