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Evap. Emissions Engine Light On:
05-09-2014, 09:30 PM
Post: #1
Evap. Emissions Engine Light On:
Trouble code P0453(fuel tank pressure is greater than 1/2 psi) Unless I'm mistaken I read a Kia spec that the gas cap should release pressure at about 3 psi and suck air in at about 1 psi vacuum. It seems to me that the "check engine" light would always be on. Is there a misprint on the code??
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05-09-2014, 10:55 PM
Post: #2
RE: Evap. Emissions Engine Light On:
This is where an actual measured number might come into play so you know if the pressure is off or if the sensor went bad.

Here's a short article that may help you understand why the code is set.

http://www.obd-codes.com/p0453

If you give us the year and engine size we can possibly come up with more info.
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