Proper terminology is Air/Fuel Ratio (A/F) Sensor Bank 1, Sensor 1. It's not an Oxygen sensor, per se. It is a wide range oxygen sensor. It is located in the top of the Bank one Catalytic converter which is at the firewall or windshield bank of the engine. There is no exhaust manifold. The cat converter bolts directly to the head. The A/F sensors screw into tops of the converters.
SOURCE: location of bank 1 sensor 1 o2 sensor
Should be in the manifold on the back side closest to the firewall.
SOURCE: 2004 suzuki verona..where is bank 1 senor 1 located on the engine
This car has a transversely mounted straight six I believe, which is really unusual, but that means it only has one bank, so "bank 1, sensor 1" will be the upstream O2 sensor (between the engine and the cat) and "bank1, sensor 2" will be the downstream sensor (behind the cat).
SOURCE: 2004 acura Tl cruise control wont engage
This is a problem you will to take to a shop, If you are mechanically inclined I can help you, but if not I would not mess with it, it could be the button or it could be the controller and could even just be a fuse, check the fuse and if you don't find the fuse blown then let me know if you have a volt meter and what to test this yourself. You are going to be working around the air bag too and if you probe the wrong wire while testing you could break your arm or leg by deploying the air bag by accident. Or your neck.
SOURCE: 2004 infiniti i35 o2 sensor locations or diagram
Bank 1 is right or rear bank.Closest to the firewall.Sensor 2 is secondary or after/downstream of pre-cats.
SOURCE: replacing timing belt, water pump, on 2004 acura tl
My sincere apologies for the delayed response.
I have only been a free contributor to this site for the last 4-months.
I am personally going back to answer your unanswered questions.
I do not know if you still need this information, however I am answering it either way.
Click on the following direct Link. It has several Diagrams you will need for your Timing Belt replacement. Included are the Cover Bolt Locations, Tool Needed and Marks for your specific engine.
You may also want to Print out these Diagrams for future use.
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!
Again my apologies...
http://www.2carpros.com/car_repair_information/year/2004/make/acura/model/tl/2004_acura_tl_timing_belt_diagram_marks.htm
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