Question About My 1993 Toyota Pickup Wont Pass Emissions Test

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So… I Am Preparing To Take The L1 This Spring…

Asked on May 24, 2010 It's kinda making me nervous. Are you a certified master? Is there anything you can tell me (without cheating) that will help me get ready for the test? I'm certified in engine performance and hvac, the tests were fairly easy, been the driveability tech for the ... Read more

1981 Corvette Emissions HELP

Asked on Mar 21, 2011 I put a 350/350 from the dealership and a aftermarket transmission in my car. The car won't pass emission. I have a catalytic converter on it. A guy told me that it was because it didn't have all of the original emissions equipment on it. Another ... Read more

Help Passing Emissions

Asked on Feb 27, 2011 My 93 Ford Mustang GT has no cats. I have a few bolt on mods and a full exhaust system. Is it possible for me to pass emissions without the cats? Is there anything I can do so that when they plug the sniffer into it ... Read more

Will My Car FInally Pass Emmisions With A New Catalytic Converter

Asked on Jul 14, 2010 Basically, I got a lot of repair work done to my car... I was just speedy and wanted the first car I could get my hands on and that was a Mitsubishi Galant 2001 ES... The car is nice tho =/ Nvermind That tho.. So far as in ... Read more

How Do I Adjust My Carburetor To Reduce C02 Emissions

Asked on Nov 22, 2010 I have a 72 Scout II with a mid 90's GM Drive Train and an Edelbrock 4 brl Carb. It is jetted for sea level and I live in Denver, CO. I don't want to change the jets for now, I just want to ... Read more

Does Changing The Knock Sensor Help The Car Pass The Emission Test

Asked on May 10, 2010 I have a 1996 Nissan Maxima and my test results indicated i have an error code: P0325- Knock Sensor 1 Circuit Malfunction. Do I need to change the sensor in order to pass the test? Any help would be greatly appreciated. Thanks ... Read more

383 Crate Engine With Carb.

Asked on Jun 19, 2010 Putting a new engine in my truck i live in nj and i know by law you have to have a catalytic converter on any car used on the road i heard that even with a catalytic converter it wont pass emission tests--is this true? if its true what ... Read more