does changing the oil help with passing emissions????
Thread Starter
Instructor
Joined: May 2005
Posts: 106
Likes: 0
From: Glendale AZ
does changing the oil help with passing emissions????
does changing the oil help with has anyone hot wired a air pump to pass emissions???? even if it only has 2k on Mobil 1 syn???
Racer
Joined: May 2006
Posts: 426
Likes: 16
From: Concord CA
Yes.. it does help. I alway change my oil before a smog test. Not sure I know how to explain it.. but it does work. I have failed a test before, changed oil and passed. So.. I will say yes to your question.
If you Google it.. you will find many right up on it. But the Dirty oil will hold a lot of contaminants will cause you to fail a smog test.
I don't beleive that hot wiring the AIR pump will help much.. It is only used on startup to help heat up the O2 Sensor.
If you Google it.. you will find many right up on it. But the Dirty oil will hold a lot of contaminants will cause you to fail a smog test.
I don't beleive that hot wiring the AIR pump will help much.. It is only used on startup to help heat up the O2 Sensor.
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Maybe - if it's running rich. Fuel vapors that enter the crankcase can be sucked back in through the pvc valve and that would show up if you scanned it. If you want some idea as to whether or not it will pass, do that. It'll show fuel delivery and if it's deadon, the only reason it shouldn't pass would be a bad CAT. On the other hand, if the oil smells like a refinery after only 2000 miles, you should probably dig into it and find out why. Performance can suffer if it's getting more gas than it needs.
