2006 Rubicon with a P2096 error code

[Danny Bass]

On a trip of over 200 miles my Jeep ran perfect, because I was driving so far when I refilled I used premium fuel. A few miles down the road a check engine light came on. When I checked the code it was a P2096. My info says to change the 02 sensors. I am looking for recommendations from the forum because of the knowledge base here.

 

[Chris]

There was a similar thread on this here:
https://wranglertjforum.com/threads...jeep-downstream-fuel-trim-system-1-lean.2930/

The O2 sensor you'll want to replace is Bank 1, Sensor 2 (Downstream), and the replacement sensor you'll want to use is NGK #23159. Do not use any other sensor than that one, as any brand that isn't NGK will give you issues and will not get rid of the check engine light.

While you're at it, I'd just replace all the O2 sensors while you're in there, since it's cheap, and good preventative maintenance.

There's a thread on this here with all the information (and sensors) you'll need:
The Official Jeep Wrangler TJ Oxygen (O2) Sensor Thread

Also, there is a TSB 18-028-06 that is specific to the 05 wrangler concerning the check engine light and code P2096 or P2098. If that is the only code and everything else is fine, the TSB requires reprogramming of a code section of the PCM which will cause the code and check engine light erroneously.

 

[Danny Bass]

There was a similar thread on this here:
https://wranglertjforum.com/threads...jeep-downstream-fuel-trim-system-1-lean.2930/

The O2 sensor you'll want to replace is Bank 1, Sensor 2 (Downstream), and the replacement sensor you'll want to use is NGK #23159. Do not use any other sensor than that one, as any brand that isn't NGK will give you issues and will not get rid of the check engine light.

While you're at it, I'd just replace all the O2 sensors while you're in there, since it's cheap, and good preventative maintenance.

There's a thread on this here with all the information (and sensors) you'll need:
The Official Jeep Wrangler TJ Oxygen (O2) Sensor Thread

Also, there is a TSB 18-028-06 that is specific to the 05 wrangler concerning the check engine light and code P2096 or P2098. If that is the only code and everything else is fine, the TSB requires reprogramming of a code section of the PCM which will cause the code and check engine light erroneously.

Thank you, I will give it a try


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[Chris]

Thank you, I will give it a try


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Let us know if that ends up doing the trick!

 

[jjvw]

I have to wonder if the premium fuel triggered the o2 sensor. If your engine stock or do your require a higher octane to prevent pre-ignition?

2003 Rubicon

 

[Danny Bass]

I have to wonder if the premium fuel triggered the o2 sensor. If your engine stock or do your require a higher octane to prevent pre-ignition?

2003 Rubicon

My engine is stock, I thought I would just give my engine a treat and burn out any carbon, clean out the lines, valves, etc. and get it ready for the spring fling.


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[jjvw]

My engine is stock, I thought I would just give my engine a treat and burn out any carbon, clean out the lines, valves, etc. and get it ready for the spring fling.


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That isn't what premium fuel is for. Higher octane resists combustion and is intended for higher compression engines with forced induction like a turbo charger.

2003 Rubicon

 

[Danny Bass]

That isn't what premium fuel is for. Higher octane resists combustion and is intended for higher compression engines with forced induction like a turbo charger.

2003 Rubicon

I didn’t realize that, I have always ran at least one tank of high test in all my vehicles once a year. Thanks for the information


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[jjvw]

I didn’t realize that, I have always ran at least one tank of high test in all my vehicles once a year. Thanks for the information


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The use of the word "premium" to describe higher octane is a scam and deliberately misleading.

2003 Rubicon

 

[Jerry Bransford]

X2 to the advice to not run higher than required octane fuels. There is NEVER a reason or benefit to run any higher octane than what the engine was designed for. Octane's sole purpose is to make the gasoline harder to ignite. Period. More octane is added solely to make the gasoline able to withstand higher compression levels of high performance engines so it won't self-ignite before the spark ignites it. If your engine is not a high compression model as indicated by the factory mandating 89 or 91 octane, there's no reason to use a higher octane. The engine won't realize it's there, it'll run exactly the same with 87 as it does with 89 or 91 octane.

It doesn't help the engine run cleaner, it doesn't help clean out deposits. It contains no more cleaning additives. The EPA mandated that all gasoline grades have sufficient cleaning additives to keep the engines clean so there's truly no benefits whatsoever to paying more for higher octane levels. They're in no way a "treat" for the engine.

 

[Danny Bass]

X2 to the advice to not run higher than required octane fuels. There is NEVER a reason or benefit to run any higher octane than what the engine was designed for. Octane's sole purpose is to make the gasoline harder to ignite. Period. More octane is added solely to make the gasoline able to withstand higher compression levels of high performance engines so it won't self-ignite before the spark ignites it. If your engine is not a high compression model as indicated by the factory mandating 89 or 91 octane, there's no reason to use a higher octane. The engine won't realize it's there, it'll run exactly the same with 87 as it does with 89 or 91 octane.

It doesn't help the engine run cleaner, it doesn't help clean out deposits. It contains no more cleaning additives. The EPA mandated that all gasoline grades have sufficient cleaning additives to keep the engines clean so there's truly no benefits whatsoever to paying more for higher octane levels. They're in no way a "treat" for the engine.

Just a little FYI

General Motors wants to make premium fuel the new standard, and it’s the second time vice president of global propulsion systems Dan Nicholson has spoken out for the change.
The executive addressed the American Fuel and Petrochemical Manufacturers (AFPM), and Forbes reported on Monday that Nicholson believes now is the time to make the switch. Why? It comes as automakers diversify powertrains and experiment with more battery-electric cars and other fuels, such as fuel cells.
The switch would make a fuel with a 95 RON (research octane) and pump octane (PON) of 91 the standard. Translation: 91 pump gasoline would replace 87 gasoline as standard in North America at gas stations.
With a switch, automakers could tune engines for higher compression and extract more work from the fuel itself to increase efficiency. Nicholson said minor changes in engines could net a 3 percent increase in efficiency alone.
The major question is how the consumer would react to such a change. Although GM predicts no major upfront cost increases for engines tuned to run 91 octane as standard, a gallon of premium fuel cost $0.52 more on average across the United States as of last week. The cost to fuel up could outweigh the slight efficiency benefits.
However, the AFPM said refineries would ultimately shift their focus to produce the premium fuel, which would bring down its cost per gallon. We could see 91 octane cost about the same as 87 octane, but only if refineries matched the production mix to a new fuel standard.


Read more: http://gmauthority.com/blog/2018/03...asoline-to-become-new-standard/#ixzz5A8FSAevA


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[jjvw]

I read that. I suppose as more and more engines are being built with forced induction and higher compression, there will be a shift to a new "regular" octane.

I don't understand why there needs to be an industry lobbying effort, since the market all by itself will dictate what fuel we need to put into our engines.



2003 Rubicon

 

[Danny Bass]

I thank all of you for your replies, I have not been able to use any of this yet as I am currently out of town. I will be back next week and will reply on the results.


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[Danny Bass]

I thank all of you for your replies, I have not been able to use any of this yet as I am currently out of town. I will be back next week and will reply on the results.


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I replaced the gas cap and guess what, the error went away. I don’t know if it was coincidence or the cause. I guess time will tell, If only I could be so lucky. I have ordered the correct sensors and the correct socket because I know I will eventually they will have to be replaced.


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[Danny Bass]

I replaced the gas cap and guess what, the error went away. I don’t know if it was coincidence or the cause. I guess time will tell, If only I could be so lucky. I have ordered the correct sensors and the correct socket because I know I will eventually they will have to be replaced.


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I replaced the sensors with the NKT brand today because the error code had returned. Hopefully this will put the P2096 error code to bed. Again thanks for the help


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[Danny Bass]

I replaced the sensors with the NKT brand today because the error code had returned. Hopefully this will put the P2096 error code to bed. Again thanks for the help


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Ok. Sensors replaced, but guess what, P2096 error returns? Any suggestions as to what to do next?


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[Chris]

Ok. Sensors replaced, but guess what, P2096 error returns? Any suggestions as to what to do next?


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Stupid question, but did you clear the error codes after you installed the new sensors?

 

[Danny Bass]

Stupid question, but did you clear the error codes after you installed the new sensors?

Honestly I don’t know, i took it to a shop to have them changed. I will personally clear them out tomorrow. Thanks


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[Chris]

Honestly I don’t know, i took it to a shop to have them changed. I will personally clear them out tomorrow. Thanks


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I'd clear them out and see if they come back. I only say that because often times the codes won't go away for a long time after you swap out the parts unless you clean the codes with an OBDII scanner.

If that doesn't do the trick, I wouldn't at all be shocked if your pre-cats are clogged (very common on these things), in which case you'll need one of these as a replacement:

https://www.amazon.com/dp/B001AGP864/?tag=wranglerorg-20

 

[smumustang]

I'd clear them out and see if they come back. I only say that because often times the codes won't go away for a long time after you swap out the parts unless you clean the codes with an OBDII scanner.

If that doesn't do the trick, I wouldn't at all be shocked if your pre-cats are clogged (very common on these things), in which case you'll need one of these as a replacement:

https://www.amazon.com/dp/B001AGP864/?tag=wranglerorg-20

how hard is it to replace this part?