P2628moderate severityPowertrain
O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 1
on 2002 Subaru Impreza 2.5L H4 · AWD
What this code means
High current in wideband O2 sensor trim circuit bank 1.
Symptoms
- Check engine light
- Lean running condition
Common causes
- Open circuit
- Failed sensor
- Short to voltage
Diagnostic steps
- Measure circuit current
- Check for opens
Repair notes
Replace sensor or repair wiring.
Other Powertrain codes on this vehicle
P0001
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P0002
Fuel Volume Regulator Control Circuit Range/Performance
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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