A vacuum leak could do that, also low fuel pressure or a dirty fuel filter.
The bank 1 sensor 2 on a 1996 Chevy Blazer is mounted in the exhaust. Sensor two is just behind the catalytic converter.
System to rich (bank 2)
On the poppet bank under the upper intake manifold.
A lean bank can be caused by bad sensors or wiring. Run computer test codes for any other problems, then follow the service manual for possible causes of the bad codes.
This would be the sensor after the catalytic converter.
It is under the upper intake manifold, attached to the bank of poppets.
Code P0174 is System too Lean (Bank 2)
pass.side at exe manifold Bank 1 is where cylender 1 is. Bank 2 is on the other side of which is on the passenger side of the blazer. Oxygen sensor 1 is the first sensor closer to the front of the blazer. Sensor 2 would be past the catalytic converter on the same side.
passenger side
where is the oxygen sensor in a 1995 gmc jimmy
It is located under the upper intake manifold. It is connected to the bank of fuel injectors (poppets) bank.
I need to know the location of the oxygen sensor 3 in bank 1 on a 2000 Chevy Blazer. Is it the one closest to Cylinder Head or closest to the catalytic converter. email address is wcannon@knology.net