"Performance Limited" Error code

[jaymz]

Like 8 miles. Could it really be the same load over like 3 weeks though?

Depends on how big the underground tanks are, and how much fuel they sell. 3 weeks is probably a stretch for most stations.

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[mwilk012]

But you can easily find quite a few people that have fixed something by pushing fuses that aren’t making perfectly good contact down a bit further. Especially because it’s a known issue with Wranglers.

Its just something weird that this forum believes.

 

[Sirikta]

Depends on how big the underground tanks are, and how much fuel they sell. 3 weeks is probably a stretch for most stations.

I wish you could see how busy our Sheetz is....4 cars deep at every pump 24/7...Pretty sure they're refilling almost daily!?

 

[Sirikta]

Well......it could be the same blend [winter] over any given period of time....

Hmmm....

Maybe I'll try filling at Sam's with Premium for shits and gigs. Couldn't hurt.

 

[mwilk012]

Thank you for not taking the "dumb girl" attitude....It gets old.

Engine is the 2.0LT, so manual.

I have an appt with the dealership, but nobody could get it in for 2 weeks. Luckily it doesn't seem to be causing an actual performance issue when it pops up, though my gas mileage is definitely sitting lower than it should. I was really just looking to see if anyone else had the issue to try and gain some insight to what it could potentially be.

I assume you mean 2.0L Turbo with the automatic transmission, so all the goobers with the references to clutch overheating can stop now.

Has your check engine light come on at any point?

 

[Sirikta]

I assume you mean 2.0L Turbo with the automatic transmission, so all the goobers with the references to clutch overheating can stop now.

Has your check engine light come on at any point?

????

Yes.

That was supposed to read "not manual." Apparently either my brain or my keyboard wanted to make me look extra dumb tonight.

No, no check engine or any other warning lights. The first time it happened I almost brushed it off as new car weirdness...the 2nd time I went "huh." Now I'm just going WTF every time it randomly pops up.

 

[mwilk012]

????

Yes.

That was supposed to read "not manual." Apparently either my brain or my keyboard wanted to make me look extra dumb tonight.

No, no check engine or any other warning lights. The first time it happened I almost brushed it off as new car weirdness...the 2nd time I went "huh." Now I'm just going WTF every time it randomly pops up.

Might stop by a parts store and see if they can pull codes anyway. A B code may be stored in memory that just isn’t quite enough to turn on the light.

Does it seem to happen under similar conditions each time? Such as, under her acceleration, or when cold, or anything consistent at all?

 

[gsbrockman]

Hmmm....

Maybe I'll try filling at Sam's with Premium for shits and gigs. Couldn't hurt.

Do you have any retailers of pure gasoline in your area?

Two points....

• It’ll give you an excuse to drive the current fuel out.
• You can then confirm (or deny) if the fuel change fixes it.

 

[engineXI]

where exactly does this message appear, is it inline or double lined? How long does it appear for? what are you doing when it appears? what after market items are installed? do you see any damage on any part of the jeep?

 

[Sirikta]

Might stop by a parts store and see if they can pull codes anyway. A B code may be stored in memory that just isn’t quite enough to turn on the light.

Does it seem to happen under similar conditions each time? Such as, under her acceleration, or when cold, or anything consistent at all?

Yeah, I stopped by Autozone the last time it happened...nothing stored.

Maybe, MAYBE it has to do with decel. It's happened twice while using ACC, once with my foot completely off of all pedals and once during a faster breaking

 

[Sirikta]

where exactly does this message appear, is it inline or double lined? How long does it appear for? what are you doing when it appears? what after market items are installed? do you see any damage on any part of the jeep?

It over rides my dash panel (the same way the Frontal collision warning yells BRAKE, but with no sound)

Lasts just long enough to dissappear by the time I grab my phone (maybe 10 seconds)

No aftermarket yet, no damage I can see and has happened during several different situations

 

[Hearhear]

Just a wild guess but maybe a bad fuel pump. My dad just got a brand new SUV, and just recently had a fuel pump recall on it. On a brand new vehicle. Sometimes it’s hard to tell they’re faulty until it absolutely fails. His SUV drove perfectly fine, but his fuel pump was defective.

 

[m3reno]

I had something similar happen to me twice, but I lost power. Is it possible you hit the gas and brake at the same time? What I was told is that the new gas pedals have a sensor and can malfunction. I replaced the pedal assembly and haven't had the issue since.

 

[Left Field]

Something may be telling the engine that the fuel pressure is low. It might actually be low, or it might just think its low.

On the 'actual low fuel pressure' it could be fuel pump, fuel filter or some restriction or venting issue.

On the 'thinks it has low fuel pressure', there is a fuel injection pressure sensor. It may have failed, or have an intermittent connection. One of the symptoms of a bad sensor can be poor fuel economy as it can over-fuel the engine due to a falsely low reading.

I don't have a 2.0, but on most engines the fuel rail is visible along the top of the engine and the sensor would likely be attached somewhere along it. Might be worth re-seating the connector. Dealer can do a fuel pressure test and verify the rest of the system.

 

[jmccorm]

I came into this thread to deliver what has turned out to be the most common and sensible guess, which is that fuel pressure is too low (or fuel pressure sensor malfunctioning). But you know what? This is a 100% pure bullshit guess, nothing more.

If you had the codes pulled and nothing's there, that doesn't mean that your vehicle didn't store a code. You're just not getting a Check Engine Light code from your reader. Your vehicle has plenty of control modules which can store codes that won't be picked up with a simple OBD-II scanner. A more expensive one, yes, that would likely tell more. And if your vehicle is telling you to service a system, you better believe that it has recorded why.

Either hunt someone down with a high quality (expensive) scan tool that's made specifically for Jeep/Chysler/Dodge/Fiat late-model products and can pull the codes from all the modules, or wait until you have your service appointment. You're not going to get anything with a cheap scanner that you haven't already learned (unless you're pulling a wide variety of OBD-II specs and comparing them against a 2.0T baseline... which won't be in a cheap scanner).

BTW: Fuel system pressure is one of the OBD-II parameters. My 2.0T reads 75.3 psi under normal operation. Also check your short-term and long-term fuel trim which should be as close to 0% as possible (more so with long-term). Potential exists for your oxygen sensors to cause a similar scenario, but this seems less likely.

PS: IF your injectors can't deliver (due to low fuel pressure) and run lean now-and-then under light driving (as in: not towing), I don't see it as a big deal as long as you're getting serviced soon. The engine runs leans, it knows it runs lean, and it does it's best to compensate.

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