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Getting code P0159. Replaced exhaust manifold on passenger…

Getting code P0159....

Getting code P0159. Replaced exhaust manifold on passenger side as it was rusted around gasket. Replaced 02 sensor 2 bank 2. Code continues to come on after letting off accelerator at highway speeds.

Mechanic's Assistant: Is this your first time dealing with this issue? What size is your engine?

I've been dealing with this for over 2 years. Taken it to Dodge and they can't diagnose the issue. 3.7 v6

Mechanic's Assistant: What is the model of your '02 Dodge?

It's a 2011 dakota

Mechanic's Assistant: Are you fixing your Dakota yourself? What have you tried so far?

Read above....

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Answered in 5 minutes by:
9/19/2017
roy
roy, import/domestic specialest
Category: Dodge
Satisfied Customers: 7,762
Experience: ASE master tech for 40 years
Verified

hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

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ok

has anyone checked the wiring for you???

P0159

ItemDescription

Symptom/DTCP0159

Descriptor

O2 Sensor 2/2 Slow Response

Probable Causes

  • Exhaust Leak
  • Oxygen Sensor (O2S)
  • Oxygen Sensor (O2S) Bank 2 Sensor 2 Signal Circuit
  • Oxygen Sensor (O2S) Return Downstream Circuit
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Customer reply replied 10 months ago
Roy, I have checked all wiring. I know what all the possible causes are. I didn't pay to find that out. That info is on the internet. �� I've taken it to a Dodge dealership and they can't even pinpoint the problem.

the slow response is from either the signal circuit or the pcm itself not processing the information.

remember I am here and not there and do not have the luxury of checking it myself. I would find the issue if I was there.

what is the voltage of the sensor engine running???

Roy

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Customer reply replied 10 months ago
I have no clue. Can I find that out by using my code reader?

no, you need a real scan tool.

Roy

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Customer reply replied 10 months ago
I have a ODBII code scan/ reader tool

does it read live data??

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Customer reply replied 10 months ago
it does.

ok tell me the voltage of bank 2 sensor 2 when running

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Customer reply replied 10 months ago
The CEL isn't on currently, I reset the computer earlier today. Will it still show a problem if there is one?

re setting does absolutely nothing. the issue is still there. you are better off leaving the light on. there is freeze frame data that is stored when the code sets.

just tell me the reading with it running???

Roy

roy
roy, import/domestic specialest
Category: Dodge
Satisfied Customers: 7,762
Experience: ASE master tech for 40 years
Verified
roy and 87 other Dodge Specialists are ready to help you
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Customer reply replied 10 months ago
Fluctuating between 0.05 and .88. All over the place.
Customer reply replied 10 months ago
Up and down
Customer reply replied 10 months ago
I replaced the 02 sensor about a year and a half ago, maybe less. Light still came on. About 3 weeks ago I replaced the passenger side exhaust manifold thinking it had a leak since it was very rusted and corroded.
Phone call session started

got answering machine

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Customer reply replied 10 months ago
The light only seems to come on after driving at highway speeds for 20-40 miles. Once you let off the gas to exit highway, light comes on.
I didn't mean to accept the phone call offer. I hit it by accident but there was no way to cancel.

you can request a refund but the site will not pay me for my efforts. is that what you want??

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Customer reply replied 10 months ago
because I hit it by accident and there was no way to cancel.
Customer reply replied 10 months ago
I'm sorry but I did not mean to hit it

ok, then I am going to opt out. we or the experts expect to be paid for our efforts. we do not work for nothing. it is the only way we get paid. when refunds are given, that knocks us out.

no worries. this will be my last post to you and I have to move on to others where I get paid.

the voltage should be stable. from thos readings it looks like you have a bad cat converter causing the slow response.

Roy

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Customer reply replied 10 months ago
Im very sorry Roy. It was an accident. Thanks for the info.

your welcome

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roy
roy
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