Limp mode

[Shakesbeard]

I have done quite a bit of searching, digging and hunting. So my car has a sporadic stutter immediately followed by a P061B code and limp mode. Sometimes it does this a few times a day, sometimes it doesn't do this for weeks. Usually I just clear the code and it fires right back up. Today not so much.

It shut off and I pulled off onto the shoulder. Press start, it starts, dies immediately. Repeat process for about 5 minutes, occasionally it will bounce an idle and die, other times just immediately off. The last start I managed to feather the throttle and get it to run for about 45 seconds, but it sounded like it was only firing on about half cylinders, then it died and also threw an IAT code. I cleared them and it fired right back up and ran fine. Got me to work and ran smooth as can be.

Now with that said, I did research before posting. I checked all of my intake system and found no lose clamps, nothing unseated, nothing out of place. I do have Injen intakes, catless midpipes and an MBRP exhaust. Along with the JB4 and EWG wires. I checked all connections from the JB4 and all are seated and I made sure my firmware is up to date.

This happens no matter the map. Even in map 8. So I am stumped at this point. Do any of you all have any ideas for something else to check? Any other insight?

 

[Monarch_GTS]

I have the same bolt-on's you do (just different brands), but this has never happened to me.

How many miles are on your engine?

I've attached the Mitchel1 diagnosis doc to this post, I got it from O'Reilly. Hope that helps.

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copy n' paste from Google AI:

The Kia P061B code means "Internal Control Module Torque Calculation Performance," signaling your car's computer (PCM) finds a mismatch in expected vs. actual engine torque, often due to faulty sensors (MAF, Throttle Position), bad wiring, or aftermarket parts, leading to poor performance, stalling, or limp mode; start by checking the air intake/MAF sensor and PCM connections, as it's a serious internal error requiring prompt attention.
Common Symptoms

• Check Engine Light (CEL)
• Poor acceleration, hesitation, or stalling
• Reduced fuel economy
• Vehicle enters "limp mode" (reduced power/speed)
• May trigger other sensor codes (MAF, Throttle)

Potential Causes

• Mass Air Flow (MAF) Sensor/Sensor Issues: Dirty, faulty, or incorrect MAF sensor.
• Throttle Position Sensor (TPS) & Wiring: Problems with TPS or its harness/connectors.
• Aftermarket Parts: Cold air intakes or performance tunes can disrupt torque calculation.
• Powertrain Control Module (PCM) Issues: Internal PCM failure or programming errors.
• Wiring/Grounds: Damaged wiring or poor grounds for sensors.
• Fuel System: Less common, but issues like a broken fuel injector spring.