Hey guys I just installed my FI RHFC but I was not able to salvage my original O2 sensors from the OEM cat because it fused together with the cat and when I was able to take it out the threading is really messed up. I plugged up the holes of the new cat with some bolts with the same threading.

I ordered new O2 sensors and they are on their way.

Is it okay to drive around without any O2 Sensors plugged in? I won't be messing up my A/F ratio will I?

 

Your car will work without O2 sensors, but I would drive as little as possible. Your engine will run rich until you get it hooked back up. I don't think any permanent damage will be done.

 

Take your old cats to a shop. A little bit of heat from a torch will get them off. Also you can run without O2 sensors but its not like youre going to run super rich and blow your engine. Our cars are setup in a way were they hit specific fuel targets, the only down side is you will get a check engine light. If you plan on not having them installed just go for a tune, your tuner can turn off the codes and tune your car for better a/f ratio etc

 

a torch and breaker bar will get them out...


Im curious though, is this the upstream o2(pre cat) or the downstream o2(post cat) because if its the downstream o2 thats not plugged in your car will run fine...however if its the upstream o2 then your car will run like crap and you will burn a TON of gas.

 

DownstreamO2 sensors. Car ran fine for the couple of days. Make sure if you attempt it to plug up the holes. No more SES light now . Thanks everyone!