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You replaced the upstream oxygen sensor on my 2001 aztek and the check enging light is still on How can this be reset?
Wiki User
∙ 15y ago
the only way to reset the check engine lilte is by a scan tool, from either the dealership or an aftermarket auto shop.
Wiki User
∙ 15y 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
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Right upstream oxygen sensor heater failure.Right upstream oxygen sensor heater failure.
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Which one? Upstream or downstream?
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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
