Quote:
Originally Posted by BYprodriver
Yes to both your questions. There is a good chance your fuel injectors are partially clogged & not spraying fuel like new. This doesn't atomize the fuel properly so some of the fuel doesn't burn throughly, and this is the source of the HC or hydrocarbons. New sparkplugs will help this. Easyest way to improve this is to pour a bottle of seafoam or Techron fuel system cleaner into 1/2 tank of Chevron Supreme & drive the car hard 3000 to 4000 rpms as much as possible. This should clean the injectors & dislodge some carbon in the engine which can get into the oil, so after that tank of fuel is gone change the oil & filter. Refill with Chevron Supreme & install new sparkplugs. On the day of the smog test drive your car on the freeway 3000+ rpm 30min+, then go directly to the testing shop.
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Thanks ! I added a bottle of Techron to a full tank and plan to take several long drives before testing. My regular porsche mechanic said he can hook my fuel system up to a device that recirculates the fuel and cleans the injectors as well; that may be my back up.
I'm going to have a pre-test session before the real test-just in case