Need O2 Sensor help
03-21-2003, 09:26 PM
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Need O2 Sensor help
OK,My service engine soon light came on this week.My wife took it to Advance Auto to get the code read.He told her it was the O2 sensor.I've noticed that shes not running as good as it needs to be.Now I called about a new one tonight and he asked which one .The one on the manifold or not.They have the one for the manifold at $69.00.The O2 sensor I,m familiar with is on the tube behind the air filter.Which one do I need? :? Thanks SO CLEAN ONE.
03-21-2003, 09:58 PM
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You should put what year and stuff in your sig. It'* will be the one be hind the engine on the manifold, there isn't one on the airbox or around it. The other one is on the CAT or near it I think. Someone will tell me if I'm wrong.
03-21-2003, 10:00 PM
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the one by the air filter is the IAT sensor (intake air temperature sensor). Is your car a pre 95 car? Or is it a 95-2004? If it is a pre 95, then you only have one oxygen sensor on the exhaust manifold which should cost around $20 at a store like autozone. BUT if your car is 95 or newer, the O2 sensor Before the cat on the manifold will be around 60, and there is also an O2 sensor after the converter..
03-21-2003, 10:31 PM
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O2 Sensor help
My SLE is a 98.OK So thats not the O2 sensor on the tube behind the air filter box.Well what does the O2 sensor look like and where exactly is this thing?
03-21-2003, 10:42 PM
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It'* on the back of the engine on the exhaust manifold. Look at your spark plugs on the back of the engine and on the 2nd one from the left and look down on the exhaust manifold will be your O2 sensor. It'* like 3 inches long with 4 wires on it and on the bottom of it looks like a bolt to take it out. It'* real easy to find.
03-21-2003, 11:00 PM
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Yes it'* not cheap, but at GM Parts Direct you can get it for 35 bucks. I don't know how to replace it, I've never taken it out yet, but it just looks like it screws out by using a wrech or pliers. Others will know here.
03-22-2003, 12:48 PM
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Originally Posted by Custom88
the one by the air filter is the IAT sensor (intake air temperature sensor). Is your car a pre 95 car? Or is it a 95-2004? If it is a pre 95, then you only have one oxygen sensor on the exhaust manifold which should cost around $20 at a store like autozone. BUT if your car is 95 or newer, the O2 sensor Before the cat on the manifold will be around 60, and there is also an O2 sensor after the converter..
