ECM Code 65
Thread Starter
Instructor
Joined: Jun 2010
Posts: 215
Likes: 4
From: Parker Colorado
ECM Code 65
If I'm in the wrong place forgive me. But here's what happened to me today driving down the highway. If I drive my car between 70-75 mph the check engine light comes on. Give it some gas and then back off and the light goes out. I pulled the code and got an H65 which I found to be a right O2 sensor reading rich. Now my question to my fellow and helpful corvette owners is do I change the sensor? Any hlep is greatly appreciated..
Racer
Joined: Nov 2010
Posts: 460
Likes: 1
From: Oliphant Ontario
O2 sensor is pretty easy but if your car has seen snow/salt you may need a torch and/or special wrench. They are the size and shape of a spark plug, on the exhaust pipe with a plug about 1ft away.
Just order in your new one, jack it up and remove the old one, screw in the new one and done. Don't add thread locker or anti seize, they come with a thread coating already. No need to clear your computer if you don't need to, H means historical, light won't come back on if the O2 was all it was (very likely).
I'd also suggest changing them in pairs on your car, you don't want a close to failing (means reading off) on one side and an accurate one on the other.
Just order in your new one, jack it up and remove the old one, screw in the new one and done. Don't add thread locker or anti seize, they come with a thread coating already. No need to clear your computer if you don't need to, H means historical, light won't come back on if the O2 was all it was (very likely).
I'd also suggest changing them in pairs on your car, you don't want a close to failing (means reading off) on one side and an accurate one on the other.
Instructor
Joined: Aug 2010
Posts: 200
Likes: 1
From: Somers N.Y.
If I'm in the wrong place forgive me. But here's what happened to me today driving down the highway. If I drive my car between 70-75 mph the check engine light comes on. Give it some gas and then back off and the light goes out. I pulled the code and got an H65 which I found to be a right O2 sensor reading rich. Now my question to my fellow and helpful corvette owners is do I change the sensor? Any hlep is greatly appreciated..
Pro
Joined: May 2010
Posts: 679
Likes: 18
From: Vernon Hills Ill
The O2 may just be doing it's job and not be the problem in itself.
