Yuri

Is it the opinion of all the mechanics out there that only Lexus parts will work, and in my case the sensors. I have replaced both sensors front and by fire wall with after market ones. The wiring connections seem correct however I am getting code 1153 1133 still. Does this mean I need to dig deep and replace both now with Lexus parts?

I would appreciate any help.

Thanks

Yes, codes are gone 1133 and 1153 after installation of OEM/denso sensors, but 0172 still coming up.

Does any know how to fix a P1135 Code? It is a Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 1 Sensor 1.

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