Diagnostic code P2177/ECM-261A on '03 XC70


Asked by Mar 16, 2011 at 02:01 PM about the 2003 Volvo XC70

Question type: Maintenance & Repair

I understand that this code has something to do with a possible intake leak of some sort. Can anyone explain this code in more detail? Thank you

6 Answers

it means that there is too much oxygen in bank 1 of the exhaust. Bank 1 is the back of the engine on a front wheel drive vehicle, it is the passenger side on a rear wheel drive vehicle. you can search for a leak by spraying down the intake manifold with carburetor cleaner while the engine is running. when the idle changes or the engine runs rough, you found your leak.

3 out of 3 people think this is helpful.

Would it be Bank 1 if the car is AWD?

2 out of 2 people think this is helpful.

Bank 1 is the same side cylinder 1 is on the engine.

1 out of 1 people think this is helpful.

Where do the accessories mount on the front of the engine or the side?


I will look and get back to you. Thank you for the help!

1 out of 1 people think this is helpful.

I have same code and its making my 2004 t5 2.5L turbo s40 Volvo cut out at anything under 4k rmps. Iv changed fuel pressure sensor, MAF sensor, and O2 sensors. My question is: with this forced air combustion system (turbo) can I still check it with the carburetor cleaner as mentioned above?

3 out of 3 people think this is helpful.

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