2007 Tundra SR5 5.7 O2 codes
Asked by Waterboy45661 Nov 18, 2018 at 12:42 AM about the 2007 Toyota Tundra SR5 5.7L Double Cab 4WD
Question type: Maintenance & Repair
My 07 Tundra was throwing 2 codes po138 and po158 down stream o2
sensors so I changed them drove for 20 miles later the codes came back. Any
answers? Please help.
9 Answers
SSMECHANIC answered 5 years ago
Probably the Air fuel ratio sensor . There known for going bad and setting off those 2 codes. Seen it on another forum before for Toyotas
Other brands will not communicate with ECU
Buy online at 10% of what dealer charges. Same thing
These are maintenance and should be changed out at major service intervals
Densofindmypart.com. For exact OEM part
Sorry site would not let me put in one post
Upper A/F sensors. Lower oxygen sensors. Should be 4 total. 2/2