On my 97' civic ex I recently got this code right after I installed a hi flow cat. I bought a brand new 02 sensor for the front bank and removed the code, and it instantly came back on. What can I do to remove the check engine light? Any suggestions would help

 

did you buy a new o2 sensor that goes on the header??

 

Yeah I bought a brand new bosch 02 sensor for the header. Any ideas?

 

did you reset the ECU, IE. take the + connector of the battery? then after some time put it back on?

 

yeah I did all of that, and it went away for a couple of minutes and then came right back on. What should I do?

 

Did you get an OEm replacement or did you have to splice the wires?

 

I got a oem replacement

 

Either its not pluged in right or you should take it back and get a new one. Sorry I cant help more.

 

take the ground of the battery for 30-45 min if that dont work then turn your ignition on and of the times in like ten sec that should do it and if not then make sure that you didnt get a bad o2 or connector

 

my bad ingnition on and off three times in like 10 sec lol

 

thankx I will go try that

 

if it is not a true high flow cat, and just a resonator with a bung, then you will keep throwing codes.

 

thats true too,make sure its not just regular *** piping that says its hi flow you know

 

I tried turning the ignition on and off like u said that didn't work so now I just took the ground cable off

 

how can I tell if it is a real hi flow cat? I bought this cat off ebay real cheap but it was brand new. If it keeps throwing the same code at me what can I do to get rid of it? Could I use a mil eliminator or a cel simulator?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bma1818 &raquo;</TD></TR><TR><TD CLASS="quote">how can I tell if it is a real hi flow cat? I bought this cat off ebay real cheap but it was brand new. If it keeps throwing the same code at me what can I do to get rid of it? Could I use a mil eliminator or a cel simulator?</TD></TR></TABLE>

Did it have the honeycomb across the middle or could you see right through it?

If it is just a pipe or resonator, get the eliminator.

 

have you tried taking the back up fuse thats under you hood in the fuse box its a 7.5 remove that for ten seconds or so and then put it back and see if the code is still there.

 

whats that goin to do

 

^^ what do you mean whats it going to do?
it suppose to clear the code.

 

I could see right thru it. What does that mean, what do I have?

 

Yeah I tried removing that fuse under the hood but it just came right back on. I just want that check engine light off!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bma1818 &raquo;</TD></TR><TR><TD CLASS="quote">I could see right thru it. What does that mean, what do I have?</TD></TR></TABLE>you need the eliminator. You don't have a high flow cat.