Re: Air/fuel ratio monitors

["Dean Hedin" <dlh2001@comcast.net>]

Since an EGT responds faster, I wonder why modern production vehicles
don't use EGT instead of (or in addition to) O2 sensors?

Seems like an EGT would allow them to close the loop better.

Are there any modern cars with stock EGT?

----- Original Message ----- 
From: "Dave Carpenter" <d.carpenter7@verizon.net>
Subject: Re: Air/fuel ratio monitors


>I had both an A/F meter and an exhaust gas temp gauge on my turbo car 
> that I drag raced. I think  the EGT gauge was probably the better of the 
> two. It had a small probe that you drill a hole into the pipe and 
> wrapped the hose clamp around the pipe. No leaks. Got it from an 
> airplane supply for about $85. It was quick to react to changes in 
> throttle setting and load. Richer=cooler, leaner=hotter.
> Dave