2002 Toyota Highlander Repair Question
Mileage: 47,534 miles.
P1135 manufacturer control fuel air matering
Can often be a faulty O2 sensor, when they fail they send mixture control to full rich.
26,913 answers provided
Your scanner/code reader is not providing you the details of the read out because it is not up to date.
P1135 is a fault with the A/F sensor, commomly known as O2 sensor.
39,905 answers provided