Engine Controls - P0300-P0306/O2 Sensor DTC Diagnostics
Group FUEL SYSTEMNumber 10-FL-012
Date OCTOBER, 2010
Model
3.3L SANTA FE AND SONATA,
3.8L ENTOURAGE, AZERA, AND VERACRUZ
Subject
P0300-P0306 AND/OR FRONT OXYGEN SENSOR DTC(S)
This bulletin supersedes TSB# 08-FL-002-1 to correct model year and OP Code time.
DESCRIPTION:
This bulletin provides diagnostic procedures for 2006-2009 vehicles with 3.3L/3.8L engines and the following DTC stored:
P0300-P0306 engine misfire DTC and Freeze Frame Data Fuel Trim of at least - 20% indicating rich shift.
or any of the following 02 sensor DTC(s):
^ P0132/P0152 - Front 02 sensor high voltage
^ P0134/P0154 - Front 02 sensor no activity detected
^ P2196/P2198 - Front 02 sensor stuck rich
^ P2A00/P2A03 - Front 02 sensor no activity
APPLICABLE VEHICLES:
^ 2006-2009 3.3L Santa Fe and Sonata
^ 2006-2009 3.8L Entourage, Azera, and Veracruz
SERVICE PROCEDURE:
1. DTC P0300-P0306 Misfire but no 02 sensor DTC stored:
Inspect the Freeze Frame Data for either the Long Term or Short Term Fuel Trim shifted -20% or more at a particular bank. The following example illustrates the fuel trim of -20% or more occurred at Bank-1 only:
2. Inspect for any of the following Front 02 sensor DTC(s) stored:
^ Bank-1 Front 02 Sensor DTC:
^ P0132 - Front 02 sensor high voltage
^ P0134 - Front 02 sensor no activity detected
^ P2196 - Front 02 sensor stuck rich
^ P2A00 - Front 02 sensor no activity
^ Bank-2 Front 02 Sensor DTC:
^ P0152 - Front 02 sensor high voltage
^ P0154 - Front 02 sensor no activity detected
^ P2198 - Front 02 sensor stuck rich
^ P2A03 - Front 02 sensor no activity
3. Should either #1 or #2 condition be present, replace the related Front 02 sensor at the applicable bank:
NOTE:
The following Rear 02 sensor DTC may have set as a result of the Front 02 sensor:
^ P2270 Rear 02 sensor stuck lean (bank-1)
^ P2272 Rear 02 sensor stuck lean (bank-2)
Do not replace the rear 02 sensor
4. Erase all DTC(s).
PARTS INFORMATION
WARRANTY INFORMATION