Rick's Free Auto Repair Advice

Posts Tagged: Bank 2

P2197

Fix code P2197 Oxygen air fuel sensor signal stuck lean Bank 2, Sensor 1 This is a manufacturer-specific trouble code for Toyota vehicles. It refers to the air-fuel sensor. The air-fuel sensor in Toyota vehicles is a more sophisticated oxygen sensor than you’ll find on other makes. It’s more expensive too, so don’t automatically assume that you can get by with throwing a new one in. The sensor could be telling you the truth and you really do have a lean condition going on.   © 2012 Rick Muscoplat

P0175

Fix code P0175 System too Rich (Bank 2) If you have a P0175 System too Rich (Bank 2)trouble code, read this to understand what it means This trouble code indicates that the oxygen sensor on bank 1 (the bank that does NOT have cylinder #1) is reporting a rich mixture. Do NOT automatically assume that you have a bad oxygen sensor. This code can also be caused by a misfire or a bad fuel pressure regulator.   © 2012 Rick Muscoplat

P0174

Fix code P0174 System Too Lean (Bank 2) If you have a P0174 System Too Lean (Bank 2)  trouble code, read this to understand what it means Lean codes are incredibly difficult to diagnose. And it’s one trouble code where you don’t want to start throwing parts at the problem. The guys at the parts store will tell you to replace the Oxygen sensor. Nice guess, but probably wrong. They’re assuming that the fuel mixture is correct but the sensor is reporting it wrong. Oxygen sensors DO wear out. But what … Read More


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