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Need some help

 
hqew2013
New User
Posts: 1
Joined: 11/13
Posted: 11/07/13 11:10 PM

I have a '96 Civic ex 1.6L Y8 motor. I recently replaced the head and now my gas milage has gone from 31mpg to about 21mpg. Any ideas why? The check engine light also comes pcb prototype (Huaqiang pcb) on but doesnt leave any codes to read. And the motor self revs. Im having a ton of problems all at once. Any feed back would be great. Thanks  

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