When is a heated 02 sensor necessary ?

[Dave Zug]

Emissions yes - earlier closed loop operation makes for happier trees.

Turbo cars like heated o2's - helps them make the time limit for federal
standards after a cold start.

Heated o2 is less likely to read FALSE-LEAN under a COLD-EXHAUST condition.

----- Original Message -----
From: <ae2598 at wayne.edu>
To: <gmecm at diy-efi.org>
Sent: Wednesday, November 01, 2000 1:22 PM
Subject: Re: When is a heated 02 sensor necessary ?


> If you suspect you need a new O2 sensor anyway, would there be any reason
> other than the obvious (more $$, another pair of wires to connect) NOT to
> use a heated sensor?  It seems as though this would help any motor go
> closed-loop quicker, improving economy and performance.
>
>  On Wed, 1 Nov 2000, Edmond wrote:
>
> > Hey guys. I just wanted to ask this question to get some opinions. It
looks like I might have to get one. I installed Edelbrock headers on my L98
engine and the brand new 02 sensor I put in, swings from like 54mV to almost
900mV at idle. I even got a "low 02" error code once from the ECM. Would a
heated 02 sensor help alleviate this ? Is one necessary when putting headers
on ?
> >
> >
> >
>
>
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