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Old 02-26-2009, 04:02 AM
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Help with air/fuel wideband gauges

I am looking to buy a wide band fuel ratio monitor. My car is carburetored. I am looking to have 2 gauges one for each exhaust.

I Would like to have only one gauge but looks like the choices are limited.

Comp cams has a system that monitors both exhausts.

What do you suggest?

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Old 02-26-2009, 09:44 PM
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Wideband gauges are fairly expensive, so I don't think you want to buy two. However, a significant part of the expense is the O2 sensor, and you need two to monitor both sides.

I think you could switch a gauge between two sensors, as long as the sensors were always powered and heated so they would read accurately. However, an A/F ratio gauge is basically just a very accurate voltmeter, so added a switch and extra wiring might affect its readings.

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