I HAVE CODE P1150 IN SIENNA 2000

SOURCE: I need to order a/f sensors for my 2000 toyota

The parts are the left and right O2 sensors (a/f sensors) before the catalytic converter. The part number is not really an issue, each manufacture has there own part numbers for these sensors. Bosch is 15733

SOURCE: The check engine light produced codes p1150 and

All cars sold in the US after 1995 use the same on board diagnotics called OBD-II. The codes are the same. Search OBM-II error codes and you'll get a listing.

P1150 Air/Fuel Sensor Circuit Range/Performance. (cylinder bank 1 Sensor 2)

P1150 may mean that one or more of the following has happened:
water or corrosion in the O2 sensor connector, loose terminals in the connector, wiring burnt on exhaust components, open or short in the wiring due to rubbing on engine components, holes in exhaust allowing unmetered oxygen into exhaust system, unmetered vacuum leak at the engine, bad O2 sensor or bad PCM.

P1155 Air/Fuel Sensor Heater Circuit. (cylinder bank 1 Sensor 2)
P1155 may mean that one or more of the following has happened: O2 Heater element resistance is high, Internal short or open in the heater element or O2 heater circuit wiring high resistance

Solution :Replace oxygen sensor and see if the problem goes away.

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