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What needs to be replaced when codes p1150 and p1155 come up

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Posted on Jan 02, 2017

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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.

Posted on Nov 17, 2009

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1 Answer

OBD trouble Code P1150


You need to get a wiring diagram suspect the air fuel sensor heater wire is open

Dec 13, 2015 | Cars & Trucks

1 Answer

Air sensor check engine light


Ok as a guess that you have a SUV and you have different air faults. if you are a DYI'er go to an auto parts store and get an error code tool. Harbor freight for $30-50. Hook it to the car and find out which sensor is it calling for. Note, you can reset the check engine light on most tools that are not the cheapest.
P1130
Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)

P1133
Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1)

P1135
Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P1150
Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1)

P1153
Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1)

P1155
Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

Nov 26, 2011 | Lexus RX 300 Cars & Trucks

1 Answer

I have a code of p1155 bank 1 sensor 2. which sensor is that


CODE P1155 HEATED OXYGEN SENSOR RIGHT HAND FRONT HEATER CIRCUIT MALFUNCTION.

Feb 14, 2011 | 2003 Toyota RAV4

1 Answer

Code p1155


P1155 Air/Fuel Sensor Heater Circuit. (Bank 2 Sensor 1)

Actually P1155 is pointing to a fault with the internal heater for the A/F Sensor (aka Oxygen Sensor) for Bank 2 Sensor 1. The PCM uses this internal heater to get the sensor to normal operating temps within a matter of seconds on cold starts. Replacing this sensor should solve your problem. This sensor is located in the front exhaust manifold.

Hope helps (remember rated this).

Aug 07, 2010 | 2001 Toyota Highlander

1 Answer

2000 Lexus lx300 getting obd 2 codes P1150,P1155 need help


P1150 Air/Fuel sensor circuit (bank 2 sensor 1)
P1155 Air/Fuel sensor heater malfunction (bank 2 sensor1)
There are a few quite a few reasons why this problem is present.
The car is 10years old, probably has between 100k and 200k miles.
I would guess that the sensor is bad and needs to be replaced. But you do want to look at other aspects of the car. I'm not there so you will need to find and confirm if the car needs a tune-up, if there is water in the fuel, if there is something else wrong with the exhaust system (like the CAT).
Also the wiring would need to be inspected to see if there are corroded, bent, or missing pins.
I will tell you that without a good scan-tool, you will either luck-out with changing the A/F sensors or you will be playing the guessing game for days. Good luck, but let me know if you have more questions.

May 12, 2010 | 2000 Lexus RX 300

2 Answers

The check engine light produced codes p1150 and p1155 on a 2000 toyota avalon xls.


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.

Nov 16, 2009 | 2000 Toyota Avalon

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