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Old 07-29-2025, 12:55 PM   #1
RockerC
 
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check engine code

anyone know what these are?

P12FC
P12F7
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Old 07-29-2025, 01:43 PM   #2
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The engine code P12FC indicates a problem with the cylinder deactivation exhaust flow valve feedback circuit on Bank 2.

P12F7 also indicates a problem with the cylinder deactivation exhaust flow control valve on Bank 2
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Old 07-29-2025, 03:51 PM   #3
S.Macias
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Quick Google Search popped up with this

https://static.nhtsa.gov/odi/tsbs/20...05553-9999.pdf
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Old 07-29-2025, 05:15 PM   #4
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Quote:
Originally Posted by RockerC View Post
anyone know what these are?

P12FC
P12F7
Those are AFM valve codes. Did you recently add an aftermarket x-pipe?
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Old 07-29-2025, 10:12 PM   #5
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Quote:
Originally Posted by S.Macias View Post
Quick Google Search popped up with this

https://static.nhtsa.gov/odi/tsbs/20...05553-9999.pdf
fact!

also your camaro looks awesome, cant wait till you move to Texas
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Old 08-25-2025, 06:53 AM   #6
RockerC
 
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Quote:
Originally Posted by Callaway SC630 View Post
The engine code P12FC indicates a problem with the cylinder deactivation exhaust flow valve feedback circuit on Bank 2.

P12F7 also indicates a problem with the cylinder deactivation exhaust flow control valve on Bank 2

thank you.
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Old 08-25-2025, 06:55 AM   #7
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Quote:
Originally Posted by SSShark View Post
Those are AFM valve codes. Did you recently add an aftermarket x-pipe?
stainless works catback 10,000 miles ago
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