Flashing SES, rough idle
Teching In
Joined: Dec 2012
Posts: 21
Likes: 0
From: Baltimore, MD
This guy may be right! You have all 02 codes and a lean code.
https://ls1tech.com/forums/pcm-diagn...odes-dtcs.html
Swap out both front sensors and see how it is.
https://ls1tech.com/forums/pcm-diagn...odes-dtcs.html
Swap out both front sensors and see how it is.
a vacuum leak will only take it so far.......O2s do go bad......i just changed mine out last week.....when i installed my headers i put in new bosch O2s.......it never really ran right.......just put in new denso O2s and now it purrs like a kitten and my gas mileage jumped up 4 mpg
Teching In
Joined: Jan 2012
Posts: 2
Likes: 0
It's the drivers side, but i'd do both the drivers and passenger side front o2 sensors. Might as well do both of em while you're under there, ya know?
On a side note, I had a flashing ses light for a period of time that would only appear when the car wasn't at operating temp, and it would only come on at part throttle. It would also miss like crazy, until you floored it. That was also caused by bad upstream o2 sensors.
Moral of that story? don't buy Bosch o2 sensors!
On a side note, I had a flashing ses light for a period of time that would only appear when the car wasn't at operating temp, and it would only come on at part throttle. It would also miss like crazy, until you floored it. That was also caused by bad upstream o2 sensors.
Moral of that story? don't buy Bosch o2 sensors!
Staging Lane
Joined: Feb 2006
Posts: 55
Likes: 0
From: Garland, Texas
OMG...why do my projects somehow turn to caca? Why didn't anyone mention that the new O2 sensors have about an inch of cable but it really needs to be about 2 feet long? 
I know how to splice wires and stuff like that for stereos, speakers, gauges; but what kind do I use for the sensor. Sorry Yawl I know this is like mechanics 101, I'm really trying to do this on my own. Thanks in advance.
I know how to splice wires and stuff like that for stereos, speakers, gauges; but what kind do I use for the sensor. Sorry Yawl I know this is like mechanics 101, I'm really trying to do this on my own. Thanks in advance.
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TECH Enthusiast
Joined: Mar 2009
Posts: 522
Likes: 0
From: West Chester, PA
If you can help it, go with Denos O2's. I am running a Bosch 13111 and it throws a code in the winter time when it doesn't heat properly. The Bosch is a lazy O2 sensor to begin with, I learned the hard way lol
I also have never had any issues with throwing O2 codes, they just would sit there and never hindered my power or created a misfire.
I also have never had any issues with throwing O2 codes, they just would sit there and never hindered my power or created a misfire.
Staging Lane
Joined: Feb 2006
Posts: 55
Likes: 0
From: Garland, Texas
Me too. 
Now don't yawl go too far. I think I'm gonna have the mother of all projects when I get to working on the front end. Not sure if its the rack and pinion or what. But the steering feels weird while turning. This is on my own car. But I'll start a new thread if I need help.
Now don't yawl go too far. I think I'm gonna have the mother of all projects when I get to working on the front end. Not sure if its the rack and pinion or what. But the steering feels weird while turning. This is on my own car. But I'll start a new thread if I need help.
