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CEL: EVAP leak & system lean?

  #1  
Old 03-28-2018, 12:45 AM
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Default CEL: EVAP leak & system lean?

Hello everyone,

My 2009 Corvette is currently showing CEL codes P0171 and P0174 (Bank 1 and 2 too lean) and P0442 P0455 (Small leak).

I replaced the gas cap with a brand new OEM cap and the CEL is still showing.

Not sure what else could cause the problem, I have noticed the car seems to idle a little rough on start-up but smooths out when the car is warm, I'm guessing the throttle body needs to be cleaned? Could this possibly throw a code?

Any input would be appreciated.
 
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Old 04-12-2018, 10:31 PM
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Was just the gas cap. lol
 

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