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don't know what you mean by upsteam O2 sensor but the first sensor is in the manifold, clearly visible with you open the hood. Resembles a larger spark plug and has a wire coming out of it. You can use a 7/8 inch/22mm hex to remove it. Not sure about removing the wire but it's probably similar to the O2 Sensor on the CAT. You squeeze the pin holding the connection in place and pull out.
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∙ 14y ago
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Is the upstream oxygen sensor the same as the downstream oxygen sensor?
no. the upstream sensor is the one before the catalytic converter and the downstream is the one after
What does the error code p0155 mean on a dodge ram?
Right upstream oxygen sensor heater failure.Right upstream oxygen sensor heater failure.
Can you show me a diagram of the upstream oxygen sensor?
Can you show me a diagram of the upstream oxygen sensor on a 3.5l liter Oldsmobile Intrigue engine?
How do you fool and oxygen sensor?
Which one? Upstream or downstream?
How many oxygen sensor is it on a zx2?
2 a upstream and downstream
Where is the oxygen sensor on a 2000 cavalier?
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mountedin the exhaust pipe after catalytic converter
Where is the oxygen sensor on a 1995 Pontiac Sunfire?
The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mounted in the exhaust pipe after the catalytic converter
Where is the oxygen sensor on the 1997 Elantra?
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
Where is the oxygen sensor on a 1998 Dodge Dakota located?
On the 98 u have two oxygen sensors an upstream and a downstream. The upstream oxygen sensor is located closer to the front of the truck by the transmission. The downstream oxygen sensor is located on down torwards the back of the truck along the side of the frame.
Do you need upstream or downstream oxygen sensor?
Depends on what the problem is or what code was set.
Where is oxygen sensor on 2000 Hyundai Elantra?
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
Where is the oxygen sensor on 1997 Hyundai Elantra?
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
