P2138 issue in cold weather

[Lytspeed]

Hi all, I hope someone can help me out.

I have a 2019 Stinger GT2. It's currently at 110K miles.

Yesterday, I started having a problem. The check engine light came on and the car went into limp mode during normal driving (not braking and not under load.) I pulled over, turned it off, and aside from the CE light remaining, it drove fine. When I started it up this morning, the CE light was out. Fourteen miles later, in the middle of a snowstorm, while not braking or under load, it happened again, so I "rebooted" it, drove home, and put it on my scanner to find a P2138 code, indicating a voltage mismatch between the throttle position sensors. I'm confident that if I restart it twice more, the CE light will go away and I'll be able to drive again, but here's the rub.

I drive Uber in this car, and that's been my only income for the last year. Jobs at my level of IT seem to have dried up, so I'm desperate and living Uber run to Uber run, literally. I don't have the money or any room on credit cards to take it in to a dealership, and as a second owner, I'm well past my warranty.

Considering that the problem corresponds to a drop in temps, I'm guessing this is electrical, and may just be loose/cold wiring or a worn out TPS, but I would like to know others' thoughts. Have any of you experienced this issue with cold weather?

I've also had FCA sensor warnings throughout the life of the car, even after having it replaced under warranty, but I usually just disable that when I start the car. But it does indicate more electrical weirdness.

 

[HanStinger]

Did the problem ever come back?

If you have more to say on the P2138 please post on my thread on the subject:

https://stingerforum.org/threads/throttle-position-error-code-and-performance-loss-after-emissions-or-fuel-pump-recall.29503/#post-464018

 

[Lytspeed]

Did the problem ever come back?

If you have more to say on the P2138 please post on my thread on the subject:

https://stingerforum.org/threads/throttle-position-error-code-and-performance-loss-after-emissions-or-fuel-pump-recall.29503/#post-464018

The p2138 issue never came back, but I deal with the forward collision avoidance sensor problem whenever it gets either too cold or too wet.

Stace

 

[HanStinger]

I don't have that collision feature.

But just came back from the dealer and they said the accelerator cable was routed improperly. But they didn't seem to think that had anything to do with my code.

 

[Thomby]

But just came back from the dealer and they said the accelerator cable was routed improperly. But they didn't seem to think that had anything to do with my code.

Saw your other thread. If the code is for a disagreement between pedal position sensor & throttle position sensor, and they're saying the pedal sensor was routed such that it was being stretched, it sounds like it was getting intermittent connectivity/signal.

So having it routed correctly may have fixed it, or the tension might've loosened some wires in the connector. You can drive it around and see if it recurs, or get under there to wiggle the wires to see if that causes it. Not sure what else the dealer would do to diagnose it.