How to lower hydrocarbons ?

[GN ERGY]

My 89 Corsica failed hydrocarbons by .03 It should be at 1.60 and my car was 16.3 And failed pressure test, I know my gas tank leaks very little when it is full. I guess I should of filled it up with gas and maybe the air wouldn't of leaked out so easily.
Any suggestions greatly appreciated.
Thanks in advance.
Tarey D.

 

[mikestertwo]

1) New Cat.
2) Reduce initial timing

Were those readings at idle?

 

[GN ERGY]

The readings were at 60 t0 65 mph on their machine. A guy at work suggested changing oil and new plugs and some alcohol in tank. What do you guys think.
Tarey D.

 

[ChavoLC2]

HC's

The guy that runs tests says a dirty air filter will bump up HC. My HC's were a tad high and I went home and took airfilter off went back and she passed. You're only talking 3/ 10th's on your car. Your car failed the gas cap pressure test?

 

[GN ERGY]

They pressurize from the gas cap to the filter canister inlet tube that they squeeze off. I know my gas tank leaks when it is more then half full at the seam, but very little. They did the test 3 times with a half a pound of air, so I figured if it is full it would leak air less? It passed 2 yrs ago, I must of had more gas in it then.
Tarey D.

 

[bison]

They pressurize from the gas cap to the filter canister inlet tube that they squeeze off. I know my gas tank leaks when it is more then half full at the seam, but very little. They did the test 3 times with a half a pound of air, so I figured if it is full it would leak air less? It passed 2 yrs ago, I must of had more gas in it then.
Tarey D.

Id get a new tank because it will only get worse the longer its left leaking.