Help! Throwing a code about infrequent switching of 02s
Joined: Nov 2001
Posts: 8,484
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From: Cecil County Raceway!!!
Re: Help! Throwing a code about infrequent switching of 02s mine were acting funny so I took a propane torch and heated the tip of the sensor until it glowed red. Let cool and reinstall. Worked great <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Re: Help! Throwing a code about infrequent switching of 02s SJH, the artist formerly known as JustMe was the one who posted burning off the deposits with a torch.
Come to think of it, it makes sense. With headers it might take longer to heat up the 02's and the meantime they get coated with junk.
Come to think of it, it makes sense. With headers it might take longer to heat up the 02's and the meantime they get coated with junk.
Re: Help! Throwing a code about infrequent switching of 02s My car threw the code once, and the O2 simms took care of it from that point on. That was for the rear ones, but I'm guessing this problems is with the front ones.
The bung on my Hookers was screwed up enough by Hooker, if somehow you could have forced the O2 into the bung, the tip would have been obscured by part of the flange. Don't know if this applies to the other headers or not. Seems like it happens more the futher down stream the O2's are.
Local used car dealer claims brake fluid works good for cleaning up deposits on O2 sensors too. I don't know as I've not tried it.
<small>[ December 23, 2002, 03:19 PM: Message edited by: 99 Black Bird T/A ]</small>
The bung on my Hookers was screwed up enough by Hooker, if somehow you could have forced the O2 into the bung, the tip would have been obscured by part of the flange. Don't know if this applies to the other headers or not. Seems like it happens more the futher down stream the O2's are.
Local used car dealer claims brake fluid works good for cleaning up deposits on O2 sensors too. I don't know as I've not tried it.
<small>[ December 23, 2002, 03:19 PM: Message edited by: 99 Black Bird T/A ]</small>
Staging Lane
Joined: Jun 2002
Posts: 96
Likes: 0
From: Cobra hunting
Re: Help! Throwing a code about infrequent switching of 02s The problem i'm having is with B2S1 and the headers are the TTS LT's.
The headers were on a 2000 WS6 with the same type of mods just before my car and they did not throw a code or anything!!
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
<small>[ December 23, 2002, 06:31 PM: Message edited by: 2K1SS ]</small>
The headers were on a 2000 WS6 with the same type of mods just before my car and they did not throw a code or anything!!
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
<small>[ December 23, 2002, 06:31 PM: Message edited by: 2K1SS ]</small>
Thread Starter
TECH Enthusiast
Joined: Nov 2001
Posts: 623
Likes: 0
From: Houston / Dallas
Re: Help! Throwing a code about infrequent switching of 02s I figured out what was killing my 02s several months ago. A bad head gasket was leaking coolant and fouling the plugs like crazy.
TECH Apprentice
Joined: Aug 2002
Posts: 331
Likes: 0
From: Gambrills, MD
Re: Help! Throwing a code about infrequent switching of 02s One thing I haven't heard being mentioned at all is that the catalytic converters might have burned up. I too got an SES light after a header install, & it turned out to be the cats --- they were fried to a crisp. The insides looked like the grill at a BBQ joint.
So if your sensors look OK, check the cats themselves.
<small>[ December 24, 2002, 09:46 AM: Message edited by: HITMANSS ]</small>
So if your sensors look OK, check the cats themselves.
<small>[ December 24, 2002, 09:46 AM: Message edited by: HITMANSS ]</small>
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On The Tree
Joined: Nov 2001
Posts: 109
Likes: 0
From: Orlando, FL
Re: Help! Throwing a code about infrequent switching of 02s Sensor wiring is just as important as the element. remember not to zip tie them too tightly to the other wiring or harness clips. They operate a little differently than you think. Pinching the wiring will be a bad thing, kinda like crossing the streams in ghostbusters <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> So all you guys, recheck your wiring. It can wreak havoc!
On The Tree
Joined: Nov 2001
Posts: 109
Likes: 0
From: Orlando, FL
Re: Help! Throwing a code about infrequent switching of 02s oh yeah, one more thing...if the o2 cross counts were switching TOO MUCH you will get a catalytic converter inefficiency code, and the rear o2's will appear to be switching as rapidly as the front ones. Again, not a good thing. Lazy sensors can have a poor air supply, crap on them, or just really old (not likely). Cross counts = switching from rich to lean or from .1 to .9 volt.
Staging Lane
Joined: Jun 2002
Posts: 96
Likes: 0
From: Cobra hunting
Re: Help! Throwing a code about infrequent switching of 02s Thanks guys, I'll try a few more things that were mentioned.
I am also trying to track what feels/sounds like a "slight" infrequent "miss" that has also just started. All plugs, wires, push rods, and springs are good. I might just be paranoid after the 02 issue started.
Also I just found a place that will weld up the peices I need to get rid of the cats wile on the car gaining me 1.5" of ground clearance!! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Thanks again guys!
I am also trying to track what feels/sounds like a "slight" infrequent "miss" that has also just started. All plugs, wires, push rods, and springs are good. I might just be paranoid after the 02 issue started.
Also I just found a place that will weld up the peices I need to get rid of the cats wile on the car gaining me 1.5" of ground clearance!! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Thanks again guys!
