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Old 02-15-2003, 02:50 AM   #1
Scooby Newbie
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Member#: 23485
Join Date: Aug 2002
Location: Juneau, Alaska
2002 WRX sedan

Default Modified Autometer A/F Gauge

The Autometer A/F gauge as modified by sold as "Full Throttle" Air/Fuel gauge is a cost effective upgrade. Tested both the standard Autometer 3375 Sport-Comp and the modified version. They use a 0-1V oxygen sensor available from Autometer, or as tested, using a generic Bosch OS100 two wire (unheated) sensor costing about $28 from any auto parts store. The standard gauge uses the 20 LED indicator to display the full 0 to 1V sensor output. The modified version uses the 20 LEDs to display only from .77V through .97V, which gives much better resolution of A/F ratio in the critical area near WOT. While it is no substitute for a spendy, professional quality, wide band A/F gauge for tuning, it does provide much more useful data than the normal narrow band A/F gauge. Plus, if you already have any of the various versions of the Autometer A/F gauge, it can be modified for $25 plus USPS mail shipping. The one day turnaround service time is very prompt. This is a recommended option for a higher quality, low cost narrow band A/F data gauge.
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