P2627moderate severityPowertrain
O2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 1
on 1997 Buick Century 3.1L V6 · FWD
What this code means
Low current in wideband O2 sensor trim circuit bank 1.
Symptoms
- Check engine light
- Rich running condition
Common causes
- Sensor fault
- Short to ground in wiring
Diagnostic steps
- Measure trim circuit
- Check for shorts
Repair notes
Replace sensor or repair wiring.
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