"Performance Limited" Error code

[COBill]

Mine was quite different. The RPMs weren't increasing. The engine was taking the day off.

Sorry, I realized that, I was just trying to add levity.

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[Dood]

I’ve been getting the same message only during deceleration and or hard braking during highway driving. It got so bad the other during a 10 mile drive that I dropped the Jeep off at the dealership, 2 days later and still no resolution or path forward but definitely agree it is a bug somewhere in the code.

 

[hiimmike]

I’ve been getting the same message only during deceleration and or hard braking during highway driving. It got so bad the other during a 10 mile drive that I dropped the Jeep off at the dealership, 2 days later and still no resolution or path forward but definitely agree it is a bug somewhere in the code.

Interesting! I think I have some further information to give to FCA people. It does seem to only happen, as far as I can recall, during deceleration.

 

[mwilk012]

Other than the dash message, have any of you seen an actual change in driveability?

 

[hiimmike]

Other than the dash message, have any of you seen an actual change in driveability?

I noticed what I believe to be a problem in CO. I was on I70 at the Eisenhower tunnel heading back East from Moab and it was metered. The light turned green for me, I pressed the accelerator and the Jeep didn’t go anywhere for about 5-8 seconds. Long enough for me to look down and see the vehicle was running and the RPMs were not increasing. Maybe altitude but it seemed all the other vehicles were were able to go.

 

[jeepingib]

Reading through this and I have developed a theory, but it would need someone to datalog to see if it's correct. It seems that this is happening when descending, decelerating, or braking. Which makes me think that there is something from that kinetic energy transfer that is causing a loss of fuel pressure. I don't know how much of the fuel system is different between the 3.6 and the 2.0. I assume that the tank, pick up, pump, filter assembly is the same and at least some of the fuel lines along the frame. So this seems like something that would be located on the engine itself. Perhaps the fuel rail.

 

[Dood]

Other than the dash message, have any of you seen an actual change in driveability?

One of the times when the pop up happened I did feel a bit of sluggishness and it kind of felt like there was some kind of timing retardation happening.

 

[hiimmike]

*** UPDATE 3/11/22-
Talked with Ron, my case manager, and I requested we get an engineer or engineering team involved. He said there is a team called STAR that is their engineering team. He is waiting for the dealer to call him back. I asked if I could bring the vehicle in soon and they could start troubleshooting. Now again I'm waiting. Ron will call me back with an update by next Friday.

 

[hiimmike]

One of the times when the pop up happened I did feel a bit of sluggishness and it kind of felt like there was some kind of timing retardation happening.

So you saw this under acceleration? I don't think I've seen the message under acceleration. Next time I see it, I'm going to floor it.

 

[hiimmike]

Reading through this and I have developed a theory, but it would need someone to datalog to see if it's correct. It seems that this is happening when descending, decelerating, or braking. Which makes me think that there is something from that kinetic energy transfer that is causing a loss of fuel pressure. I don't know how much of the fuel system is different between the 3.6 and the 2.0. I assume that the tank, pick up, pump, filter assembly is the same and at least some of the fuel lines along the frame. So this seems like something that would be located on the engine itself. Perhaps the fuel rail.

I told my Jeep case manager, Ron, this is what I seem to be observing from my experience and others on the forums. The whole deceleration thing when we see the message. However, someone did mention they saw the message while under acceleration, like one up from this post here. I'm going to drive around and see if I can reproduce the issue by braking and then floor it and see if I notice any acceleration issues.

Why am I doing Jeeps job for them????? @JeepCares You should give me a free Mopar lift or something. :D

 

[Initial-Jeep]

I'm curious if there's a difference between decelerating from under boost vs. not. I wouldn't be surprised if it occurred after a transition from moderate-to-high boost to no boost/vacuum.

 

[Jebiruph]

Reading through this and I have developed a theory, but it would need someone to datalog to see if it's correct. It seems that this is happening when descending, decelerating, or braking. Which makes me think that there is something from that kinetic energy transfer that is causing a loss of fuel pressure. I don't know how much of the fuel system is different between the 3.6 and the 2.0. I assume that the tank, pick up, pump, filter assembly is the same and at least some of the fuel lines along the frame. So this seems like something that would be located on the engine itself. Perhaps the fuel rail.

The fuel system on direct injection engines like the 2.0 operates at a much higher pressure than port injection, so none of the pressurized fuel system would match the 3.6.

 

[jeepingib]

The fuel system on direct injection engines like the 2.0 operates at a much higher pressure than port injection, so none of the pressurized fuel system would match the 3.6.

I had forgotten that the 2.0 is direct injection. I will be honest, I know very little about this engine. I am assuming that it is common rail injection like a Diesel. If so I would wonder about the high pressure pump. Maybe it is cavitating under the negative g forces of braking, etc?

 

[jdecosta]

Thinking about this, I think it only seems to happen to me under deceleration. Anyone else seen it happen under acceleration?

Same here, I was decelerating going into a right hand turn.

 

[jdecosta]

Reading through this and I have developed a theory, but it would need someone to datalog to see if it's correct. It seems that this is happening when descending, decelerating, or braking. Which makes me think that there is something from that kinetic energy transfer that is causing a loss of fuel pressure. I don't know how much of the fuel system is different between the 3.6 and the 2.0. I assume that the tank, pick up, pump, filter assembly is the same and at least some of the fuel lines along the frame. So this seems like something that would be located on the engine itself. Perhaps the fuel rail.

I was thinking that the fuel pickup location or baffle design in the tank have changed and cause it to momentary lose fuel.

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