Cel - p0455

JMJinNC

Member
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2012 Mazda5 Sport 6-speed
Okay, got a check engine light and code P0455 (gross vacuum leak) on our 2012 Mazda 5 Sport. I erased the code and retightened the gas cap. Worked for a day, now it's back.

Time to snoop around the engine bay for a loose hose. I'm due for oil change, so I might as well have them do the snooping under warranty. Anyone else have this issue - loose vacuum hose, gas cap, charcoal canister, etc.

Thanks in advance - JMJ
 
Can be a bad gas cap if tightning it does not help.
Another issue that crops up with that code is if you top up the gas tank after it cuts off.
If you do it all the time, you can damage the charcoal canister, if you do it, try stopping and see if that helps.
 
I brought the 5 in for its first oil change & tire rotation. Turns out the code 0455 was a faulty solenoid valve. Fixed under warranty.

JMJ
 
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