Emissions tricks
 

so i just replaced all my vacume lines and im gonna give it a run at emmissions. i live in washington so it is required. Are there any tricks i can do to get this damn car to pass? lean it out when i get the the place? any help is greatly appreciated.

1st question is, How old is the main catalytic converter?

The things that will help you pass are. Fresh spark plugs clean air filter, cap/rotor, and wires in good shape. If your about due for a oil change then do it before the test.


make sure that you drive the car for about 20 minutes hard on the freeway before you get to your appointment. Arrive just before your appointment and do not shut the motor off. You want it to heat soak and keep the converter hot.

There are guys that have used denatured alcohol in their gas to help lower emmisions also. They have posted on the forum, so you might want to do a search with the words, denatured alcohol.

When in doubt, have a pretest done. If you have been to a shop before and know someone there they will usually look at the numbers first and tell you if it looks like it will pass or not.

There are a lot of nifty tricks for emissions testing in the FAQs.

if my car made it yours should pass. my car was running rich on leading ignition only and overheated right after i passed in the deq building{just got it that day and didnt know that it had no t-stat}