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Post by Green WS6 on Feb 18, 2006 15:08:41 GMT -5
When I bougth my car I noticed that the EGR valve was missing and I have no cats and no O2 sensors. Will this affect the performance of the car in any way?
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Post by fast93z on Feb 18, 2006 17:02:52 GMT -5
It actually helps the performance of the car. Hopefully the PCM is tuned for no EGR ....etc. It will make your fuel milage a little worse than having the parts on the car....but for performance.......keep them off. You dont have a SES light on do you?
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Post by Green WS6 on Feb 18, 2006 18:02:58 GMT -5
Yes this light is on.  |
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Post by cowboyz28 on Feb 19, 2006 1:35:40 GMT -5
the SES light is on probably because the car hasnt been tuned, if its a '96 and up it has to be tuned for the EGR delete because it is OBDII but 93-95 doesnt have to be tuned even though it should be. Also if it is an OBDII car it will have to be tuned for the cat delete because if i remember right it has an O2 sensor either in or after the cat. you could do 1 of 2 things with that you could program that out of your computer or you could weld in another O2 bung and put in an O2 sim and that would fix the SES/Cat problem.As for the O2 delete WTF? the O2's are there for the PCM to sense whether it is rich or lean so if it were me id weld some O2 bungs on and put em back on. sorry for the long post.
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Post by Green WS6 on Feb 19, 2006 12:24:28 GMT -5
I know there's 4 O2 sensor. One before the cat and one after the cat.
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Post by cowboyz28 on Feb 19, 2006 17:48:05 GMT -5
yeah there should be 4 on yours, the 2 before are put there for the tuning of the engine the PCM uses the readings from those to know how much fuel to put in the chamber rich/lean. the rears arent quite as important. the rears can either be programmed out of the PCM or you can put O2 sims in and it tricks the computer into thinking there is a cat there.
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