P2628
O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 1
2001-2001 Cadillac DeVille 4.6L V8 Northstar
Moderate SeverityPowertrainGeneric (SAE)
The 2001 Cadillac DeVille is equipped with a 4.6L V8 engine. Below you'll find detailed p2628 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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.
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
P2628 on Other Vehicles
Common Questions
What does code P2628 mean on a 2001-2001 Cadillac DeVille?
P2628 stands for "O2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 1". High current in wideband O2 sensor trim circuit bank 1.
What are the symptoms of P2628 on a Cadillac DeVille?
Common symptoms of P2628 include: Check engine light, Lean running condition.
What causes P2628 on a 2001-2001 Cadillac DeVille?
Common causes of P2628 include: Open circuit, Failed sensor, Short to voltage.
Last updated: March 2026