A/F Gauge
A/F Gauge
So got a dumb question but thought I would ask anyway. So my A/F guage reads 16 (max) when I let off the gas. Normal driving it is around 14.2.
I know it reads so high because I am not giving it fuel but is this normal?
I don't remember the A/F in my CLS doing it
I know it reads so high because I am not giving it fuel but is this normal?
I don't remember the A/F in my CLS doing it
71Q
Joined: Feb 2007
Posts: 198
Likes: 0
From: Central/West, FL
If you have a narrow band gauge it will not be accurate in general anyhow.
Yes however, my supra goes well past 20:1 LEAN when i drop throttle and decel in gear. cruising at 14.7:1 is ok, thats a stoich(perfect) mixture for a gasoline based engine, e85 capable and diesels will be different good mixtures due to energy per gallon basically.
the tune on my supra allows for cruising at 16:1 or leaner under certain conditions, and that car gets better mileage than my TL haha.
From the sound of things, everything is fine, and your CL may just have had a stock narrowband sensor. The 3g TL i believe will have a 5 wire wideband, and will be a better, more precise metering tool, especially based on its ULEV status.
Take care
Mark
Yes however, my supra goes well past 20:1 LEAN when i drop throttle and decel in gear. cruising at 14.7:1 is ok, thats a stoich(perfect) mixture for a gasoline based engine, e85 capable and diesels will be different good mixtures due to energy per gallon basically.
the tune on my supra allows for cruising at 16:1 or leaner under certain conditions, and that car gets better mileage than my TL haha.
From the sound of things, everything is fine, and your CL may just have had a stock narrowband sensor. The 3g TL i believe will have a 5 wire wideband, and will be a better, more precise metering tool, especially based on its ULEV status.
Take care
Mark
Thanks for the input!
I went with the autometer nexus gauges. They are pretty sweet although they ordered the 0-60 boost gauge instead of the 0-30 so it basically goes no where. As soon as it is replaced I am posting a vid for the the color change, peak, warn, and recording.
You can take an SD card and record the gauges then view using their software.
I went with the autometer nexus gauges. They are pretty sweet although they ordered the 0-60 boost gauge instead of the 0-30 so it basically goes no where. As soon as it is replaced I am posting a vid for the the color change, peak, warn, and recording.
You can take an SD card and record the gauges then view using their software.
Originally Posted by 722ish
If you have a narrow band gauge it will not be accurate in general anyhow.
^+1. narrow band a/f gauge is next to useless. invest in a wideband its worth every penny. i have the aem uego which comes with a bosch sensor. im going on 1 1/2 years and hasnt failed me yet.
bent09, congrats on the SCer. are you getting tired of the bucking and serging yet?
71Q
Joined: Feb 2007
Posts: 198
Likes: 0
From: Central/West, FL
[QUOTE=04accordcpe]^+1. narrow band a/f gauge is next to useless. invest in a wideband its worth every penny. i have the aem uego which comes with a bosch sensor. im going on 1 1/2 years and hasnt failed me yet.
QUOTE]
2 Years for me on an FJO System with an NTK sensor. I couldnt use a BOSCH style because of leaded fuel, the only sensors that are not compromised by leaded fuel.
QUOTE]
2 Years for me on an FJO System with an NTK sensor. I couldnt use a BOSCH style because of leaded fuel, the only sensors that are not compromised by leaded fuel.
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