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Old 04-06-2020, 01:54 AM   #1
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P0451 & U1201 after JRSC installation.

Hello all,

I am the first owner of my 2013 FRS. I just installed my new JRSC with the CARB tune. After the first drive I have had the car go into limp mode. The first codes shown was P0455, P0451 and U1201. The car drives perfect and I'm stumped.

Tried calling Jackson Racing, unfortunately it seems they are out due to COVID 19. I looked up everything I could on the forum. I found something about BPV might be faulty, hoses under the intake manifold might have popped off etc... I am at wits end. Any ideas would help me out a bunch.
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Old 04-06-2020, 07:22 PM   #2
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Who installed your kit? Did you buy the kit new or used? Is anything modified on the original kit? Are you sure the car was flashed on a CARB tune?

Did you check the EVAP solenoid for a leak or loose harness?
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jackson racing, limp, p0451, p0455, u1201

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