Hi,
Having similar codes, 1133, 1153 and P0172 on '99 RX300 123k miles.
Codes 1133 and 1153 came up after installation p/n 156-8400 universal Walker in place of air fuel ratio sensors. Looks like incorrect part in wrong place.
Thanks to local auto parts store bad cross-reference system.
According to Mike from oxygensensors.com no "universal" cheap $100-150 sensors available for RX-300 besides Denso $244 and Walker $280. Local dealership wants $359 for each and claiming their cost is $296ea.
Will update you next week if sensors are cause for all codes.
I am aware P0172 may be set by many different components. Anybody had P0172 and fixed it? Where to start, most likely problem?
Thanks
Yuri
