Gas cap choices
03-26-2017, 04:07 PM
#1
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Gas cap choices
On my 98 HX, noticed that sometimes I'll get a check engine light because of the pressure in the gas tank, is it a good idea to purchase a vented gas cap or stick with the standard one?
03-26-2017, 04:47 PM
#2
Re: Gas cap choices
The cap has to be sealed. If the pressure in the tank stays at zero (a vented cap, or no cap), a code will definitely be thrown.
The standard cap may have a pressure / vacuum relief valve to prevent damage to the tank in unusual situations. It should nor vent under normal conditions.
The standard cap may have a pressure / vacuum relief valve to prevent damage to the tank in unusual situations. It should nor vent under normal conditions.
03-26-2017, 05:43 PM
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Re: Gas cap choices
The cap has to be sealed. If the pressure in the tank stays at zero (a vented cap, or no cap), a code will definitely be thrown.
The standard cap may have a pressure / vacuum relief valve to prevent damage to the tank in unusual situations. It should nor vent under normal conditions.
The standard cap may have a pressure / vacuum relief valve to prevent damage to the tank in unusual situations. It should nor vent under normal conditions.
03-27-2017, 07:49 AM
#4
Re: Gas cap choices
OEM cap is best, and they are not expensive at all. If that doesn't fix it, there is also a 2-way valve on the side of the fuel tank (lets pressure out to the EVAP, and/or lets air into the tank as the fuel level drops. Beyond that, you are looking at various seals between parts of the fuel filler, fuel tank, and evap canister.
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