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Check Engine Light.. Obdii Parameter..


786innovation
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Hi All,

Check engine light is on on my toyota avensis 2001 1.8 VVTI GS. the error code is "p0155 O2 sensor heater circuit malfunction (bank2 sensor1)". As for as I read around and researched the reasons can be

1. o2 sensor on bank2 (pre-catalytic which is on passensger side on top of engine) is malfunctioning so needs to be replaced or

2. Fuse/relay is blown due to water in o2 sensor harness, so only fuse should be relaced or

3. A wire in sensor is broken or faulty

As I test my car engine through OBDII tool, it gave me almost optimum readings parameter. I have attached a file of OBDII data in text form when engine was left start and idle. Can any body help me whats wrong here. data is about short trim fuel, MAF, SENSOR voltage etc..

Your help will be greatly appreciated. Thanks in advance

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Hi All,

Check engine light is on on my toyota avensis 2001 1.8 VVTI GS. the error code is "p0155 O2 sensor heater circuit malfunction (bank2 sensor1)". As for as I read around and researched the reasons can be

1. o2 sensor on bank2 (pre-catalytic which is on passensger side on top of engine) is malfunctioning so needs to be replaced or

2. Fuse/relay is blown due to water in o2 sensor harness, so only fuse should be relaced or

3. A wire in sensor is broken or faulty

As I test my car engine through OBDII tool, it gave me almost optimum readings parameter. I have attached a file of OBDII data in text form when engine was left start and idle. Can any body help me whats wrong here. data is about short trim fuel, MAF, SENSOR voltage etc..

Your help will be greatly appreciated. Thanks in advance

TOYOTA AVENSIS.pdf

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