Question about 2004 Pontiac Aztek
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 26, 2013 | Dodge Grand Caravan Cars & Trucks
Aug 20, 2011 | 2000 Chevrolet Express Cargo
Aug 04, 2011 | 2002 Lincoln LS
Jun 03, 2011 | 2001 Dodge Stratus
Feb 26, 2011 | Toyota Avalon Cars & Trucks
Feb 08, 2011 | Honda Odyssey Cars & Trucks
Jan 13, 2011 | 2006 Hyundai Sonata
Fig. Fig. 3: Oxygen sensor-4.3L engines
Fig. Fig. 4: Oxygen sensor-5.0L and 5.7L engines
Fig. Fig. 5: Oxygen sensor-7.4L engines
Oxygen sensors are always numbered like this:
Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2
Some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2
Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.
Sensor 1 is always the upstream sensor (the one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.
Hope helps (remember to rate this).
Dec 12, 2010 | Chevrolet Suburban Cars & Trucks
Oct 17, 2009 | 1996 Chevrolet K1500
Sep 09, 2009 | 2001 Chrysler Sebring
Dec 23, 2017 | 2004 Pontiac Aztek
Mar 23, 2017 | 2004 Pontiac Aztek
229 people viewed this question
Usually answered in minutes!