Gosh Darn Emmissions (90q20v)

[Ameer Antar]

Sounds like the cat's dead anyway. Most of the time, bad emissions are b/c of a dead cat. At least, it makes the largest difference in emissions. Cat's are cheap...mine was $100. just get a new one. 

O2 sensors and even a slightly over rich mixture won't affect the emissions that much if the cat is working. But running rich fuel mixtures will probably shorten the lives of the cat and the o2. How do you know the mixture is off? 

I know it's not cheap, but I'd switch to the right octane for your car. Lower octane fuel is not going to get the car to pass. 

-Ameer

----Original Message----

Date: Wed, 12 May 2004 22:46:57 -0700
From: David Thoresen <david at epicfoto.com>
Subject: Re: Gosh Darn Emmissions (90q20v)
To: <quattro at audifans.com>
Message-ID: <F229409A-A4A0-11D8-8409-003065CCE040 at epicfoto.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed

Well I failed.... again.... 330 ppm (220 pass) on cruise and 1.42 (1.2 
pass) on idle...  new 02 Sensor (bosch non-spliced), and new bosch 
triple (non-platinum plugs)...  new dizzy cap/rotor and low octane 
fuel... :o(

the old o2 sensor was big time bad, the cover of it is now in my cat... 
(I can hear it rattling in there) the cat is getting "punched out" 
since I have to remove it to remove that "rattle"

cleaned up my MAF sensor and throttle body with Air intake cleaner... 
dang my car is fast now... (even with low octane)

kept the K&N filter... (looked good)

At this point I want to just register my car where my mom lives, (no 
smog check)... but I do want to fix the "richness" problem...

Any additional thoughts appreciated....



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