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Message: [QUOTE="Black 02, post: 1331546, member: 6916"] Well, I got a new hydra chip from ******** and it seemed to take care of the random dying issue that my truck had. That is a good thing. Figured I'd start a new thread about my new issue. Now, I'm dealing with a miss at mid-rpm range (1500-2500 rpm). It's most noticeable when I'm just cruising on the freeway. It starts this miss and almost bucking action where it feels like I'm losing a cylinder or something. If I stomp on it, it goes away. When it comes back to settle in at a steady RPM, it starts happening again. Since when the RPMs are higher, the miss is less noticeable, I was driving to work this morning on cruise at about 2600 RPM. After about 5 mins of driving like this, the check engine light came on. Truck was still running funny, but the light stayed on until I shut the truck off and restarted. I scanned the truck with my AE. Besides the codes tripped for a modded engine (EBP, intake heater, wastegate), I had a couple codes. When I did the buzz test, everything sounded good. I got a P1298 IDM Failure code. I was told I'd get a code because I have a Swamp's IDM. When I did the Key On Engine Running test, I got a P0269 Cylinder 3 Fault code. Also, I got a P1211 ICP Higher/Lower than desired. I've found when I leave the truck in neutral or park and rev it up above 2500 RPM, I'll get that code also. If it is park when I rev it up above 2500 RPM and just let off the pedal, the truck will die. I've done some data logging and the ICP is a little jumpy, but nothing crazy. Duty cycle with ICP pressures looked good. Here is a poor video of the truck missing on the freeway. This isn't as bad as sometimes it is. You can hear the engine over my tires. Sometimes there is a more noticeable bucking going on around that speed. [URL="https://youtu.be/kU5rmjlnI3c"]https://youtu.be/kU5rmjlnI3c[/URL] Truck runs good when floored. It just runs like crap when cruising. One person on the other thread mentioned CPS and connector. I have a new dark grey CPS from RiffRaff in the truck. Didn't check the connector. I have an old black CPS I could try. ICP sensor is new, IPR is new...... Any help is appreciated. [/QUOTE]