Possible causes
– Faulty Front Heated Oxygen Sensor Bank 1
– Front Heated Oxygen Sensor Bank 1 harness is open or shorted
– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors
– Intake air leaks may be faulty
– Exhaust gas leaks
– Front Heated Oxygen Sensor Bank 1 harness is open or shorted
– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors
– Intake air leaks may be faulty
– Exhaust gas leaks
Tech description
Replacing the Front Heated Oxygen Sensor Bank 1 usually takes care of the problem.
There is a factory service bulletin for the following Honda models:
1998-2001 Honda Prelude
Honda Prelude Factory Service Bulletin Honda Prelude OBDII Code P0133
1998-2002 Honda Accord
Honda Accord Factory Service Bulletin Honda Accord OBDII Code P0133
When is the obd code mean?
The response of the voltage signal from the sensor takes more than the specified time.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– High Fuel Consumption
– Excessive Smoke from Exhaust
– High Fuel Consumption
– Excessive Smoke from Exhaust
P0133 HONDA OBD Code Description