When to change 02 and coils???
Thread Starter
Le Mans Master
Joined: Aug 2009
Posts: 5,197
Likes: 190
From: ALL governments are legalized mobsters, so doesn't matter where I live :(
When to change 02 and coils???
Ola amigo's,
I was checking out one of the threads yesterday about a vette that was on 2 guys garage and how they were "freshening" it up. I didn't get to see the episode but from what I got the ignition coils were bleeding juice and the 02 sensors were past their prime and needed to be changed. This all made me think as to when to change mine as I'm at the 90k mark. I tried searching online but didn't get much feedback about the coils and mixed idea's about changing the 02 sensor's. There isn't anything wrong with my car and the only problem I had with my 02 sensor is when I took it out of storage it through a code at me and the engine light came on. It said something about a bad 02 sensor. I just reset the code and was on my way with no performance issues. My gas mileage seems ok but maybe if I change the coils and 02 sensor it can be better?
So basically my question is this...would it be worth it to change the coils out for new ones and also the 02 sensor's? Which 02 sensor's do I change, the 2 before the cats, or the 2 after??? Or do I change all 4??? Any advice or experience's welcomed
I was checking out one of the threads yesterday about a vette that was on 2 guys garage and how they were "freshening" it up. I didn't get to see the episode but from what I got the ignition coils were bleeding juice and the 02 sensors were past their prime and needed to be changed. This all made me think as to when to change mine as I'm at the 90k mark. I tried searching online but didn't get much feedback about the coils and mixed idea's about changing the 02 sensor's. There isn't anything wrong with my car and the only problem I had with my 02 sensor is when I took it out of storage it through a code at me and the engine light came on. It said something about a bad 02 sensor. I just reset the code and was on my way with no performance issues. My gas mileage seems ok but maybe if I change the coils and 02 sensor it can be better?
So basically my question is this...would it be worth it to change the coils out for new ones and also the 02 sensor's? Which 02 sensor's do I change, the 2 before the cats, or the 2 after??? Or do I change all 4??? Any advice or experience's welcomed
Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
I'm having a ltft issue that I'm tracking down so I just tested my 02 sensors yesterday (my car has 95K miles on it) and all of them were reading within acceptable ranges except for one lazy one in the rear so I'll probably just change that one... I'd imagine you'll see a slight improvement in gas mileage if you change all of them...
