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Old 04-11-2019, 01:17 PM   #1
Bony_ahmed
 
Drives: Toyota Yaris SEdan
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How to diagnose O2 sensor's ecu side connector

can anyone tell me the way to check the ecu side upstream o2 sensor connector ?
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Old 04-11-2019, 07:18 PM   #2
2bz
 
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Buy a OBD2 reader. https://www.amazon.com/OBD2-Scanner-.../dp/B0743X5WV8
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Old 04-12-2019, 04:09 AM   #3
Bony_ahmed
 
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i've checked with obd2 reader. O2 sensor bank 1 sensor 1 giving no value. I've installed a brand new denso sensor. The issue is maybe with the ecu side wiring, how to do that ? I've no experience in wiring
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