o2 sensor question
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o2 sensor question
ok i have a 93 f150 with the 300 6 i have an air fuel ratio guage that i would like to install but i dont know which wire is the signal wire on my o2 sensor it is a 4 wire sensor does anyone have a wiring diagram handy for me or know off hand which one i need to be splicing into
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Joined: Jun 2006
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From: Ottawa, Ontario
What brand and style gauge do you have? Does it just have a series of LEDs that are labeled rich to lean or does it have an actual numerical scale with numbers from about 10-18? If it's just the rich/lean gauge then it can be tapped into the factory sensor but it'll just swing back an forth like in the link below most of the time when the system is in closed loop, and it will peg at rich when you have the pedal floored and the computer switches to open loop. Air Fuel Gauges - Auto Meter Tech Tips
This is fine of course it will show you that the EFI system is operating normally, but it won't tell you the actual A/F ratio the system is running at, to get that you need a wideband O2 and gauge installed in it's own bung in the exhaust. One of these systems will run $200 to $300 and options include..
Digital Wideband Air/Fuel Gauge - Wideband O2 UEGO, Water/Methanol, Stand Alone Engine Management, Piggyback F/IC, Tru Boost Controller, Gauges, Automotive Performance Electronics
Innovate Motor Sports On-Line Store
This is fine of course it will show you that the EFI system is operating normally, but it won't tell you the actual A/F ratio the system is running at, to get that you need a wideband O2 and gauge installed in it's own bung in the exhaust. One of these systems will run $200 to $300 and options include..
Digital Wideband Air/Fuel Gauge - Wideband O2 UEGO, Water/Methanol, Stand Alone Engine Management, Piggyback F/IC, Tru Boost Controller, Gauges, Automotive Performance Electronics
Innovate Motor Sports On-Line Store
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