G37 Coupe

Need help! Did engine swap now car in limp mode on and off

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Old Oct 21, 2023 | 12:52 AM
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SlowAhhG
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Need help! Did engine swap now car in limp mode on and off

Hello, I had to do an engine swap on my 2010 g37x due to lifter tick and water so I recently did a q50 3.7 awd engine in my car. I picked it up and it drove good for 2 days. Now when I took it out today to drive, 10 minutes into the drive the car started to jerk heavily and couldn’t go past 20. It would rev out to 2.5k rpm then sound as if I’m missing an upshift. My car is automatic fyi. I let it sit and 5 minutes later it’s back to normal. Idk what to do, I have 0 codes on the dash right now. Any suggestions on what this could be? Im going to change my maf tomorrow. My old engine had 107k miles and the new one has 54k miles if that matters.
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