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2000 Dodge Neon oxygen sensors

Tiny
RUSSHA686
  • MEMBER
  • 2000 DODGE NEON
  • 4 CYL
  • FWD
  • MANUAL
  • 249,700 MILES
I have a 2000 chrysler (dodge) neon 2.0 litre sohc, 5spd.
check engine light is on
i did the ignition key (on-off-on-off-on-off) trick
the following codes displayed themselves
P0134
P0135
P1684
I was wondering which of the oxygen sensors should I replace first
or should I just replace both before and after the catalyst converter and be done with it
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Friday, July 25th, 2008 AT 12:21 AM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The first two codes are both related to the front o2.

The last one sounds like a communication error of some sort, but I don't have info on that one.

You can have the O2 scoped, but it might be the same cost to just replace it.

I would do a carbon cleaning on the engine first if it were mine.
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Friday, July 25th, 2008 AT 5:46 AM

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