P1456low severityPowertrain
EVAP System Leak Fuel Tank
on 2020 Acura MDX 3.5L V6 · AWD
What this code means
A leak detected in the EVAP system on the fuel tank side.
Symptoms
- CEL
- Fuel odor possible
- Failed emissions
- Intermittent in cold weather
Common causes
- Loose fuel cap
- Cracked fuel cap gasket
- Faulty ORVR valve
- Damaged EVAP lines
Diagnostic steps
- Check fuel cap seal
- Smoke test EVAP system
- Inspect tank lines
- Test two-way valve
Repair notes
Replace fuel cap or repair EVAP leak.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1