 7afe CEL code w/out 2nd o2 sensor, CEl code 2 weeks after installing a header without the 2nd o2 sensor. |
 Apr 4, 2010 - 10:14 AM
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 Enthusiast Joined Apr 4, '10 From Asheville, NC Currently Offline Reputation: 0 (0%)  |
I apologize if this has been asked before. The search function is practically worthless since I can't search the term "o2" and every search I tried brought about 25 pages of results (none of which helped me).
I installed my aftermarket header about 2 weeks ago. Since there is no place for the 2nd o2 sensor, I simply unplugged it. Just this morning, it threw a CEL code (code 21: oxygen sensor). I want to know if any performance is going to be lost from not having the 2nd o2 sensor plugged in. From what I understand its job is to simply make sure the cat is functioning. Also, if it matters, my '95 7afe has an intake and is also straight-piped. - Tum This post has been edited by Tuminatuh: Apr 9, 2010 - 7:55 PM --------------------  |
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Apr 6, 2010 - 8:06 PM
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Enthusiast  Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
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Apr 7, 2010 - 12:15 AM
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 Enthusiast Joined Mar 16, '09 From New York Currently Offline Reputation: 23 (100%) |
lol everyone freaks about the search button.
the check your engine light is in this link ►►Click here◄◄ But I just ordered for my 94 ST, some ebay headers. I have also been reading through alot of the forums and asking quite a few questions, but I know that there is some "non-fouler" trick you can do? I really would like more of an explanation of this? I dont understand, does the non-fouler just plug into where the 2nd o2 sensor would go? Thanks alot for any help someone can be, I just dont understand lol THANKS! -------------------- I've spilt my heart into this car :) And I don't ever plan to stop  - 6GC for Life - >Semper Fi< 1994 Cupra :p 3sgte 1995 Celica ST DD 1969 Chevelle SS alllll balls. P2 approved! |
Posts in this topic
Tuminatuh 7afe CEL code w/out 2nd o2 sensor Apr 4, 2010 - 10:14 AM
Bitter you CAN read it, just need a paperclip. Apr 4, 2010 - 11:48 AM
Tuminatuh QUOTE (Bitter @ Apr 4, 2010 - 12:48 ... Apr 6, 2010 - 12:55 PM Bitter google Apr 7, 2010 - 7:13 AM Tuminatuh QUOTE (Bitter @ Apr 7, 2010 - 8:13 A... Apr 8, 2010 - 12:52 PM Bitter i can't tell you any better than its already b... Apr 8, 2010 - 10:11 PM Tuminatuh QUOTE (Bitter @ Apr 8, 2010 - 10:11 ... Apr 9, 2010 - 7:53 PM |
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