Oxygen Sensor???? 1993 Ruby
Team Owner
Joined: Sep 2001
Posts: 62,067
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Clean it? what good will that do you.
If you have an idle problem, dont go suspecting one component over another. If you have no codes, the first thing I'd check is whether the the WP is going bad and leaking.
Just dont go spending money until you figure out what the problem is.
If you have an idle problem, dont go suspecting one component over another. If you have no codes, the first thing I'd check is whether the the WP is going bad and leaking.
Just dont go spending money until you figure out what the problem is.
Thread Starter
Drifting
Joined: Oct 2003
Posts: 1,348
Likes: 18
From: Dallas Texas
Thanks
been a vetter for about 24 years now...when I say that I suspect a problem, I have a bit of back-up to support the statement, not just a random guess....I was just asking if anyone has had any luck cleaning a O2 sensor...Thanks
been a vetter for about 24 years now...when I say that I suspect a problem, I have a bit of back-up to support the statement, not just a random guess....I was just asking if anyone has had any luck cleaning a O2 sensor...Thanks
Le Mans Master
Joined: Jan 2002
Posts: 5,556
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From: Jenison MI
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Originally Posted by vader86
A dirty oxygen sensor isnt going to cause the idle problem.
Check for engine codes.
Check for engine codes.
And if you are going to go through the time to pull it out, just replace it. But I don't think that's your problem. Bad plug, bad wire, bad opti will also do that.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
I wouldn't expect a bad "anything" until you dump your error codes. But yes, a faulty O2 sensor can cause the problems you mention by sending bogus voltage to your ECM, which on turn may richen or lean your AFR depending on the voltage sent....
There is an even greater chance your O2 is bad if your engine idles fine for the first few minutes after cold start of engine, while the computer is "open Loop". This is when the O2 sensor output voltages iare ignored. O2 sensors only work properly when they are very hot.
There is an even greater chance your O2 is bad if your engine idles fine for the first few minutes after cold start of engine, while the computer is "open Loop". This is when the O2 sensor output voltages iare ignored. O2 sensors only work properly when they are very hot.
Drifting
Joined: May 2005
Posts: 1,336
Likes: 12
From: Chicago Executive Airport, formerly known as Palwaukee
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St. Jude Donor '12-'13-'14-'15-'16-'17
You can put the trans into neutral. Rev engine to exactly 2,000 rpm for at least 2 minutes.
Recommended by GM to clean debris off of O2 sensors.
I do that on my LT4 on a regular basis. Maybe once a month. Engine idles like a piece of glass.
Just my experience.
Recommended by GM to clean debris off of O2 sensors.
I do that on my LT4 on a regular basis. Maybe once a month. Engine idles like a piece of glass.
Just my experience.
