upstream (front) sensor (before catalytic converter)
They should be in the exhaust system close to the engine ( either in the exhaust manifold outlets or the exhaust pipe ) before the exhaust enters the catalytic converters Bank 1 is the passenger side of the engine and sensor 1 is the upstream sensor Bank 2 is the driver side of the engine and sensor 1 is the upstream sensor on that side
Replace the upstream O2 sensor which is on the exhaust manifold
upstream 02 sensor located right above exhaust manifold gasket downstream located right in front of catallytic converter
Bank 1 sensor 1 was the upstream 02 sensor located before the catalytic con on my 03.
Bank 1 (one) is the side in front of car (Bank 2 is rear, firewall side) 02 sensor 1 is upstream, on exhaust manifold (02 sensor 2 is downstream, by cat. conv.)
The one closest to the exhaust manifold is the upstream O2 sensor.
no. the upstream sensor is the one before the catalytic converter and the downstream is the one after
Right upstream oxygen sensor heater failure.Right upstream oxygen sensor heater failure.
Swimming Upstream was created on 2003-02-27.
Can you show me a diagram of the upstream oxygen sensor on a 3.5l liter Oldsmobile Intrigue engine?
Depends on what the problem is or what code was set.