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so i got this code P0421 - Page 2

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blufabric
3/27/2008 1:03:20 PM
passing emissions wouldnt be a problem..if you guys know what i mean...haha
 
so my last question, is it bad driving like this?
 
i mean because i already reset the computer and the cel is off and i dont feel my
car running any different as how it used to be before the cel
 
??
blufabric
3/27/2008 1:04:00 PM
oh by the way,
 
thanks guys for helping out!
Sebba
3/27/2008 10:14:47 PM
No it doesn't harm the car at all. It might harm your gas mileage a decent amount though.
 
Dont mention it, its what we are here for.
jcosmejr
5/24/2008 12:13:39 PM
Okay my mom has an 02 Lancer ES giving the same p0421 and p0135. So I purchased the bosch o2 sensors (we had a fire not to long ago and money is short), and I am assuming the cat is shot. Now, I understand there are two cats???? one at the manifold and another underneath the car at the exhaust. I am here in San Antonio for another week and half and then back to Orlando, and I would like to get this done for my mom and as cheap as possible (being able to stay away from mitsu dealer) given her financial situation (and I am in college and broke also hence why I can't help $$$ her out). If anybody can help me in knowing exactly what to replace and buy (this car is stock, not worried about upgrading just want it back to normal so my mom can have a piece of mind)> I would greatly appreciate any help you guys can give so I can get the parts ordered and on the car. 
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