question about the autometer a/f ratio gauge
06-12-2002, 01:44 PM
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question about the autometer a/f ratio gauge
how acurate are they. also why does it move alot wile coasting and stays green when i am at wot?
could i use the gauge to sorta eye ball my a/f ratio with a computer? i know you are going to say use a wide ban o2 but tell me why.
could i use the gauge to sorta eye ball my a/f ratio with a computer? i know you are going to say use a wide ban o2 but tell me why.
06-12-2002, 01:46 PM
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Re: question about the autometer a/f ratio gauge (CovertFI)
they are garbage. i ahve one that says im rich all the time and went to the dyno to find out i was wayyyyy lean and almost blew my motor
06-12-2002, 01:48 PM
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Re: question about the autometer a/f ratio gauge (itr206)
i know i have to be right because of the amount of deposites in my exhaust! it is horrible i even get some sut on my bumber and i still have my cat!
06-12-2002, 01:53 PM
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Re: question about the autometer a/f ratio gauge (CovertFI)
how acurate are they.
also why does it move alot wile coasting and stays green when i am at wot?
It goes green because under acceleration your motor needs more fuel.
could i use the gauge to sorta eye ball my a/f ratio with a computer? i know you are going to say use a wide ban o2 but tell me why.
My autometer reads full rich when my Wideband reads 14.6:1. 14.6:1 is richer than 14.7:1, yes, but your motor would not last too long if you tuned to 14.6:1 under full boost
06-12-2002, 01:53 PM
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Re: question about the autometer a/f ratio gauge (itr206)
really? so Autometer A/F's are worthless? daym.. gonna have to throw that on the FAQ page. What are some good A/F's? Or has this been convered and i should do a search...
06-12-2002, 01:57 PM
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Re: question about the autometer a/f ratio gauge (CustomCockpits)
It's not worthless. It is good for tuning cruise and idle conditions to stoich. But it is not useful for full load tuning.
Most people here are running stock ECUs anyways, so they cannot do much tuning of closed loop conditions.
Note that it is not the gauge that is worthless, it's the factory O2 sensor. The sensor is purpose built to sense stoich for closed loop fuel control, nothing more. You cannot do any real tuning with the factory O2 sensor using ANY gauge. All gauges that read narrow band O2 sensors are of limited use.
Dustin
Most people here are running stock ECUs anyways, so they cannot do much tuning of closed loop conditions.
Note that it is not the gauge that is worthless, it's the factory O2 sensor. The sensor is purpose built to sense stoich for closed loop fuel control, nothing more. You cannot do any real tuning with the factory O2 sensor using ANY gauge. All gauges that read narrow band O2 sensors are of limited use.
Dustin
06-12-2002, 01:57 PM
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Re: question about the autometer a/f ratio gauge (CustomCockpits)
i think it is really the o2 sensors fault right? not the gauge. like they say it is only as strong as the weakest link and the o2 is the weakest. what if i buy a wideban o2 and hook that up to my gauge?
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06-12-2002, 02:02 PM
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Re: question about the autometer a/f ratio gauge (CovertFI)
i think it is really the o2 sensors fault right? not the gauge. like they say it is only as strong as the weakest link and the o2 is the weakest. what if i buy a wideban o2 and hook that up to my gauge?
Also, even if you had a controller, the autometer gauge could not read it. The autometer gauge is a voltmeter that reads 0v-1v. 0v is full lean. .5v is stoich. 1v is full rich.
Wideband O2 sensors/controllers typically output 0v-5v. And their output is not necessarily linear. Wideband O2 displays must be matched to the wideband controller to correctly correlate output voltage to A/F ratio.
Dustin
06-12-2002, 02:03 PM
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Re: question about the autometer a/f ratio gauge (dustin)
It's not worthless. It is good for tuning cruise and idle conditions to stoich. But it is not useful for full load tuning.
Most people here are running stock ECUs anyways, so they cannot do much tuning of closed loop conditions.
Note that it is not the gauge that is worthless, it's the factory O2 sensor. The sensor is purpose built to sense stoich for closed loop fuel control, nothing more. You cannot do any real tuning with the factory O2 sensor using ANY gauge. All gauges that read narrow band O2 sensors are of limited use.
Dustin
Most people here are running stock ECUs anyways, so they cannot do much tuning of closed loop conditions.
Note that it is not the gauge that is worthless, it's the factory O2 sensor. The sensor is purpose built to sense stoich for closed loop fuel control, nothing more. You cannot do any real tuning with the factory O2 sensor using ANY gauge. All gauges that read narrow band O2 sensors are of limited use.
Dustin
permission to use this for the FAQ page?
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