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Re: [GMCnet] muffler and placement [message #159645 is a reply to message #159642]

Wed, 08 February 2012 14:44

emerystora

Messages: 4442
Registered: January 2004

Karma:

Senior Member

Yes, some O2 sensors are usually 2 wire. The heated one have 3 or 4 wires. These have a heating element built in so that they come up to operating temperature more quickly.

The sensors only work effectively when heated to approximately 316 �C (600 �F), so most newer lambda probes have heating elements encased in the ceramic that bring the ceramic tip up to temperature quickly. Older probes, without heating elements, would eventually be heated by the exhaust, but there is a time lag between when the engine is started and when the components in the exhaust system come to a thermal equilibrium. The length of time required for the exhaust gases to bring the probe to temperature depends on the temperature of the ambient air and the geometry of the exhaust system. Without a heater, the process may take several minutes.

So, if you place the sensor farther from the engine it might not work well unless its a heated sensor.

Emery Stora

On Feb 8, 2012, at 1:32 PM, sgltrac wrote:

>
>
> Emery,
> A heated O2 sensor??
> --
> Sully
> 77 Royale basket case.
> Future motorhome land speed record holder(bucket list)
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Emery Stora
77 Kingsley
Santa Fe, NM

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[Message index]

		muffler and placement By: sgltrac on Tue, 07 February 2012 19:37
		Re: muffler and placement By: Larry on Tue, 07 February 2012 20:04
		Re: muffler and placement By: Keith V on Tue, 07 February 2012 21:14
		Re: muffler and placement By: Dennis S on Tue, 07 February 2012 20:55
		Re: muffler and placement By: gbarrow2 on Tue, 07 February 2012 21:51
		Re: muffler and placement By: mike miller on Wed, 08 February 2012 05:25
		Re: [GMCnet] muffler and placement By: Mr ERFisher on Wed, 08 February 2012 05:31
		Re: muffler and placement By: Larry on Wed, 08 February 2012 07:07
		Re: [GMCnet] muffler and placement By: USAussie on Wed, 08 February 2012 08:24
		Re: muffler and placement By: GeorgeRud on Tue, 07 February 2012 21:52
		Re: muffler and placement By: Ken Burton on Wed, 08 February 2012 01:42
		Re: [GMCnet] muffler and placement By: emerystora on Wed, 08 February 2012 10:06
		Re: [GMCnet] muffler and placement By: emerystora on Wed, 08 February 2012 10:08
		Re: [GMCnet] muffler and placement By: Ken Burton on Wed, 08 February 2012 20:35
		Re: muffler and placement By: Keith V on Wed, 08 February 2012 08:08
		Re: muffler and placement By: sgltrac on Wed, 08 February 2012 12:04
		Re: [GMCnet] muffler and placement By: emerystora on Wed, 08 February 2012 12:34
		Re: [GMCnet] muffler and placement By: Keith V on Wed, 08 February 2012 12:48
		Re: [GMCnet] muffler and placement By: rvanwin on Wed, 08 February 2012 21:57
		Re: [GMCnet] muffler and placement By: sgltrac on Wed, 08 February 2012 14:32
		Re: [GMCnet] muffler and placement By: Mr ERFisher on Wed, 08 February 2012 14:44
		Re: [GMCnet] muffler and placement By: emerystora on Wed, 08 February 2012 14:44
		Re: [GMCnet] muffler and placement By: James Hupy on Wed, 08 February 2012 14:45
		Re: [GMCnet] muffler and placement By: sgltrac on Wed, 08 February 2012 17:10
		Re: muffler and placement By: PETEinLongBeach on Wed, 08 February 2012 12:47
		Re: muffler and placement By: tphipps on Wed, 08 February 2012 14:56
		Re: muffler and placement By: PETEinLongBeach on Wed, 08 February 2012 15:23
		Re: [GMCnet] muffler and placement By: USAussie on Wed, 08 February 2012 17:21
		Re: muffler and placement By: mike miller on Wed, 08 February 2012 20:32
		Re: muffler and placement By: sgltrac on Thu, 09 February 2012 23:55
		Re: muffler and placement By: WD0AFQ on Fri, 10 February 2012 00:16
		Re: [GMCnet] muffler and placement By: sgltrac on Fri, 10 February 2012 00:23
		Re: [GMCnet] muffler and placement By: MIGUEL MENDEZ on Fri, 10 February 2012 11:08
		Re: [GMCnet] muffler and placement By: Ken Burton on Sun, 12 February 2012 03:25
		Re: [GMCnet] muffler and placement By: mickeysss on Mon, 12 March 2012 10:52
		Re: [GMCnet] muffler and placement By: sgltrac on Tue, 13 March 2012 08:51
		Re: [GMCnet] muffler and placement By: Larry on Tue, 13 March 2012 10:18

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