P219B code

[Beantown]

My 2021 JLU Sport manual with 300 miles has the check engine light. Pulled the code today P219B (Air to Fuel ratio imbalance).
It has 3.6 Pentastar which ran very rough with a misfire before the CEL.
Anyone experienced this?

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[SargeRubicon14]

My 2021 JLU Sport manual with 300 miles has the check engine light. Pulled the code today P219B (Air to Fuel ratio imbalance).
It has 3.6 Pentastar which ran very rough with a misfire before the CEL.
Anyone experienced this?

I haven't been able to get a code, but mine is doing the same thing. It's a 2021 Rubicon, manual, 3.6L with 385 miles. I did a search of the forums and found a couple other posts with people having the same issue. I have a feeling all of our engines are from the same batch. I'm calling the dealership tomorrow.

 

[JeepCares]

My 2021 JLU Sport manual with 300 miles has the check engine light. Pulled the code today P219B (Air to Fuel ratio imbalance).
It has 3.6 Pentastar which ran very rough with a misfire before the CEL.
Anyone experienced this?

I haven't been able to get a code, but mine is doing the same thing. It's a 2021 Rubicon, manual, 3.6L with 385 miles. I did a search of the forums and found a couple other posts with people having the same issue. I have a feeling all of our engines are from the same batch. I'm calling the dealership tomorrow.

Hello @Beantown and @SargeRubicon14
We regret to hear about the concerns you are experiencing with your Jeeps. We recommend bringing this to the attention of your dealer for assistance. We also would like to offer our additional support throughout your vehicle service - please send our team a private message with your VIN and mileage so that we may investigate this further on your behalf.

Kathryn
JeepCares

 

[Beantown]

I haven't been able to get a code, but mine is doing the same thing. It's a 2021 Rubicon, manual, 3.6L with 385 miles. I did a search of the forums and found a couple other posts with people having the same issue. I have a feeling all of our engines are from the same batch. I'm calling the dealership tomorrow.

Hello @Beantown and @SargeRubicon14
We regret to hear about the concerns you are experiencing with your Jeeps. We recommend bringing this to the attention of your dealer for assistance. We also would like to offer our additional support throughout your vehicle service - please send our team a private message with your VIN and mileage so that we may investigate this further on your behalf.

Kathryn
JeepCares

PM sent.

 

[SargeRubicon14]

Hello @Beantown and @SargeRubicon14
We regret to hear about the concerns you are experiencing with your Jeeps. We recommend bringing this to the attention of your dealer for assistance. We also would like to offer our additional support throughout your vehicle service - please send our team a private message with your VIN and mileage so that we may investigate this further on your behalf.

Kathryn
JeepCares

I sent a PM as well.

 

[Beantown]

Update.
Bad oxygen sensor 2 from the factory. Will pick up tomorrow.
Stay tuned...

 

[Beantown]

Update.
My Wrangler still at the dealership...
Not the way my first Jeep ownership experience I expected.

 

[SargeRubicon14]

Update.
My Wrangler still at the dealership...
Not the way my first Jeep ownership experience I expected.

Mine is still there too. Must be more than just an O2 sensor.

 

[FormerF150Owner]

Update.
My Wrangler still at the dealership...
Not the way my first Jeep ownership experience I expected.

It's a shame that there are at least 3 of us with <500 miles on our Jeeps and all have check engine lights that the service techs can't diagnose. Like you said, not the experience we would have hoped for after paying all this money.

 

[Yad]

Any update. I have the same code P219A already change the O2 sensor light Check engine light came back in after 100 miles.

 

[mwilk012]

Air fuel ratio imbalance is usually a mechanical failure internal to the engine. Damaged cam lobes, rocker arm / lifter failure, burned valves. Need to do a compression test and leakdown on the misfiring cylinder.

 

[Beantown]

Any update. I have the same code P219A already change the O2 sensor light Check engine light came back in after 100 miles.

Mine was fixed after new valve cover (new design I am told) new O2 sensors (leak fouled the sensors) and new spark plugs (faulty plugs at the factory I am told) I am at almost 25k miles and no issues since the repair 3 years ago.

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