http://shop.store.yahoo.com/machv/cybairgaug.html has autometer a/f gauges recalibrated to read .76 to .96 volts instead of .05 to 1.0 volts. they claim it will stay dark until the car is at high / wot and then it should read out (when you really need it). can someone tell me what voltage the stock O2 sensor is reading at idle or highway when it is in open loop? And what voltage is at wot in closed loop? if this will be usefull instead of a lightshow, ill probably order one tomorrow. They are showing 4 colors (black, white, silver, and carbon fiber). I emailed them to find out if the silver was the ultra lite gauge to match the car or something else. if its the right range, it will go from .05 per led to .01 per led and get rid of the lightshow during open loop.
Calibrated Autometer A/F Gauge
- Thread starter Ezeikiel
- Start date
why wouldn't you just buy a gauge that does an LED readout, since this is all they're converting to?
http://gadgetseller.com/gauges/
these guys have been recalibrating autometer's for a long time, and they have lots of other products of this nature
http://gadgetseller.com/gauges/
these guys have been recalibrating autometer's for a long time, and they have lots of other products of this nature
they are selling the same thing - recalibrated autometer led style gauges. i hadnt run accross or heard of gadgetseller.com before. if someone can give me the voltages we are running at wot and idle so i can make sure the gauge is in the correct range i will order one. ive been wanting the a/f, but didnt want a useless lightshow. jred - have you dealt with gadgetseller.com before?
BremertonMSP
Member
- :
- 95 F-150 4x4, 89 Mustang Turbo Coupe, 87 Thunderbird Turbocoupe
Ezeikiel said:
Sounds to me like they just snipped the leads on all but the green LEDs and are charging more for doing so.
I would be interested in knowing exactly how they calibrated the gauge before I laid out $100 for it.
The gauge looks exactly the same as most of us are running.
Striker187
Member
- :
- 2008 MS3 GT
correct me if i'm wrong but shouldn't the gauge be steady at open loop? it should only be cycling back and forth in closed loop as that's what the computer is doing....constantly changing the a/f ratio.
my bad, long day. stolen from http://www.flyinmiata.com/protege/tech/ecu_theory.asp
ECUs have two basic modes: open loop and closed loop operation.
Closed loop means that the ECU looks at inputs such as the front O2 sensor and adjusts the fuel for the ideal stoichiometric ratio for maximum efficiency. The ECU makes a change, looks at the O2 readout, makes a change - looping around.
Open loop means that the ECU will ignore most of the sensors and run off the pre-programmed fixed fuel and timing maps. These are very rich, partially for safety. For emissions reasons, the stock ECU will run in closed loop as often as possible. Over a certain load - calculated by air flow - the ECU will go open loop.
ECUs have two basic modes: open loop and closed loop operation.
Closed loop means that the ECU looks at inputs such as the front O2 sensor and adjusts the fuel for the ideal stoichiometric ratio for maximum efficiency. The ECU makes a change, looks at the O2 readout, makes a change - looping around.
Open loop means that the ECU will ignore most of the sensors and run off the pre-programmed fixed fuel and timing maps. These are very rich, partially for safety. For emissions reasons, the stock ECU will run in closed loop as often as possible. Over a certain load - calculated by air flow - the ECU will go open loop.
Striker187
Member
- :
- 2008 MS3 GT
right so you mean stop the rave show during closed loop right?
this will make the gauge a little more useful, as you will be able to know the actual voltage of the o2 sensor and that will indicate whether you are rich or not, and it will stop the light show. i'd rather have a read out of what the gauge is reading though than have to count lights, but at a glance the lights may be easier, you just need to remember what lights are what voltage.
i haven't dealt with gadgetseller.com, but i have heard of people who have with no problems.
i haven't dealt with gadgetseller.com, but i have heard of people who have with no problems.
BremertonMSP
Member
- :
- 95 F-150 4x4, 89 Mustang Turbo Coupe, 87 Thunderbird Turbocoupe
Striker187 said:
You are correct!
i have the automeather A/f guage from gagetsellers and it works great the light show is still but the reading are a lil bit more accurate and it aslo comes with a recalbrated booklet that shows what all the LEDs mean. it is more steady than the unmodified A/F guage. this guage is set up for boosted cars un like the reg. ones
