In theory. But IIRC there have been isolated cases of not having that sensor made them run whacky. There is a difference in having a code for a bad sensor and not having one at all.
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Type: Posts; User: 4.3LXJ; Keyword(s):
Re: High idle, BS codes
In theory. But IIRC there have been isolated cases of not having that sensor made them run whacky. There is a difference in having a code for a bad sensor and not having one at all.
Re: High idle, BS codes
Here are my thoughts on that O2 sensor. They only show codes if they have a break in the wiring or the heater in them is shot. I am assuming you have a three wire sensor in. I know you probably...
Re: High idle, BS codes
Where is the O2 in relation to the muffler?
Re: High idle, BS codes
Do you have a cat and a pipe behind it?
Re: High idle, BS codes
But you are getting a code for the upstream. Better check the wiring. Did you clean that IAC port?
Re: High idle, BS codes
One will be for the downstream sensor for sure, the 141 code. You may also have a bad upstream sensor. If it hasn't been changed in forever, better change it too. As for idle, pull the Idle Air...