In a 2002 Cadillac DeVille, the Bank 1 Sensor 1, which is the upstream oxygen sensor, is located on the driver's side of the engine. It is positioned in the exhaust manifold, before the catalytic converter. This sensor monitors the oxygen levels in the exhaust gases to help the engine control module optimize fuel injection and emissions.
Just in front of the Cat converter, drivers side.
Locate the sensor on the exhaust system unplug it ,unscrew it and replace it in reverse. Pretty simple. Autozone will lend you a special socket needed to go around the wires if needed
on the cat by the downpip
Where is a camshaft position sensor located on a 2002 Cadillac deville? Not sure why the question was answered by a question for a different car but: 1. The camshaft position sensor for a Saturn S-series does not exist. The PCM may throw a trouble code for improper camshaft timing, or a faulty camshaft sensor when the electronic ignition module has malfunctioned. Saturn uses a dummy camshaft pulse generated by the ignition module to fool the PCM into thinking it has a cam sensor. The camshaft sensor circuit fails most often, resulting in poor performance, and trouble code indicators. 2. The camshaft position sensor for a 2002 cadillac deville is located on the driver side of the front bank cylinder head. If this were a cadilliac question form, i would have included a picture.
Bank 1 (cyl. 1-3-5 passenger side) Sensor 1 (first sensor from engine) is accessible from under car. It is located just before the catalytic converter.
The Northstar engine uses two O2 sensors. Sensor 1 is located on a bung in the exhaust after the manifold, but before the catalytic convertor. Sensor 2 is located after the catalytic convertor. It's that simple.
Right side of dashboard, behind the glovebox, and then behind the bank of relays. It is screwed to the back of the bracket that is supporting the relays.
On a 2006 Cadillac DTS, Bank 1 Sensor 2 is located in the exhaust system, specifically after the catalytic converter on the driver's side of the vehicle. This sensor is part of the vehicle's emission control system and helps monitor the efficiency of the catalytic converter. Accessing it typically requires lifting the vehicle and may involve removing heat shields or other components for better visibility.
Cadillac DeVillethese o2 sensors are located aft of the cat that is o2 #2 ,o2 #1 is forward of the cat this is the same on all OBDII compliant auto's Fred@towerpower6@bigriver.net
Try to picture this Bank 1 Sensor 1 Bank 2 Sensor 1 Catalytic Conv. Catalytic Conv. Bank 1 Sensor 2 Bank 2 Sensor 2
Is this bank 2 sensor 1 or sensor 2?
The HO2S (Heated Oxygen Sensor) bank 1 is between the manifolds and the Cadillac Converter. Manifold Exhaust (T) > "HO2S Sensor" > Cadillac Converter > muffler