Opti or 02???
Thread Starter
Teching In
Joined: Aug 2021
Posts: 1
Likes: 0
Opti or 02??? Just had a clogged cat, it was really bad. Cut it off, and threw a new one on. Now my car idles funny, sometimes stutters. Even when I start it, sometimes no start. Almost 99% sure it’s opti but looking for second opinion. Car ran perfect before cat converter was clogged, now it’s all fucked. Also should I just replace the opti if I’m doing it? Not sure I could even get to my plugs to be honest.
When the engine is cold it is in open loop and will not take any O2 info until it goes into closed loop at operating temperature. You can also unplug the O2', start it up and see what happens.
Launching!
Joined: Mar 2022
Posts: 247
Likes: 32
Just had a clogged cat, it was really bad. Cut it off, and threw a new one on. Now my car idles funny, sometimes stutters. Even when I start it, sometimes no start. Almost 99% sure it’s opti but looking for second opinion. Car ran perfect before cat converter was clogged, now it’s all fucked. Also should I just replace the opti if I’m doing it? Not sure I could even get to my plugs to be honest.
I was able to change all of my spark plugs without taking off the manifolds however I did need to come up from under the car for some of the plugs and I had removed the shield that was near the starter. So you should be able to as well however it was extremely difficult and a slow process.
