1998 Dodge Neon 98 dodge neon O2 sensor problem

1998 DODGE NEON
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HZJOHNSON
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1998 Dodge Neon 4 cyl Automatic
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i have a 98 dodge neon and i recently had the check engine light come on and well i got it checked out and it was misfiring and the sparkplugs and the O2 sensor came up. so i replaced everything i need for the misfiring.. new spark plugs, new cords and a new new sensor and i had them clear the system well i drove it for a couple of days and than it came back on and so i went to get it check and they gave me the code p0138 saying that the in out voltage from oxygen sensor 2 in bank1 is too high for current operating conditions. what do i need to do to fix that?
Jul 15, 2008 at 10:08 PM
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OBXAUTOMEDIC
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[quote:8ee824ea70="hzjohnson"]1998 Dodge Neon 4 cyl Automatic
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i have a 98 dodge neon and i recently had the check engine light come on and well i got it checked out and it was misfiring and the sparkplugs and the O2 sensor came up. so i replaced everything i need for the misfiring.. new spark plugs, new cords and a new new sensor and i had them clear the system well i drove it for a couple of days and than it came back on and so i went to get it check and they gave me the code p0138 saying that the in out voltage from oxygen sensor 2 in bank1 is too high for current operating conditions. what do i need to do to fix that?[/quote:8ee824ea70]

Did you replace the O2 Sensor closest to the engine? If so that was Sensor 1 Bank 1 and is located in Manifold. There are 2 O2 Sensors you should replace the second one which is located at the Rear of the Catalytic Converter.
Jul 15, 2008 at 10:15 PM
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HZJOHNSON
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[quote:215f472a22="obxautomedic"][quote:215f472a22="hzjohnson"]1998 Dodge Neon 4 cyl Automatic
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i have a 98 dodge neon and i recently had the check engine light come on and well i got it checked out and it was misfiring and the sparkplugs and the O2 sensor came up. so i replaced everything i need for the misfiring.. new spark plugs, new cords and a new new sensor and i had them clear the system well i drove it for a couple of days and than it came back on and so i went to get it check and they gave me the code p0138 saying that the in out voltage from oxygen sensor 2 in bank1 is too high for current operating conditions. what do i need to do to fix that?[/quote:215f472a22]

Did you replace the O2 Sensor closest to the engine? If so that was Sensor 1 Bank 1 and is located in Manifold. There are 2 O2 Sensors you should replace the second one which is located at the Rear of the Catalytic Converter.[/quote:215f472a22]

i replaced both to be on the save side.. but it's tellin me its the one after the catalytic converter
Jul 15, 2008 at 10:24 PM
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OBXAUTOMEDIC
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Check for clogged Cat.
Jul 15, 2008 at 10:27 PM
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HZJOHNSON
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would that explain why the input voltage is too high?
Jul 15, 2008 at 10:31 PM
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OBXAUTOMEDIC
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Ok, Looked up code you have posted
P0138 - O2 Sensor Bank1 Sensor2 Shorted to Voltage.....

Check Connection and wiring for chaffing....
Jul 15, 2008 at 10:51 PM