Kinsler_Handbook_#32 December 2017

Kinsler Fuel Injection, Inc, 1834 THUNDERBIRD TROY, MICHIGAN 48084 U.S.A. Phone (248) 362-1145 Fax (248) 362-1032 150 EXHAUST GAS OXYGEN (EGO) Installed in the exhaust system, this generates a low voltage signal (usually 0-5 volts) relative to the oxygen in the exhaust, which is proportional to the engine’s instantaneous air-fuel ratio. This allows the ECU to adjust the fuel to maintain a proper air-fuel ratio. HOW IT WORKS : The inside and outside of the ceramic body of the sensor is coated with a thin layer of zirconium/platinum which serve as electrodes. The inside surface is exposed to ambient air while the outside surface is exposed to exhaust gas. The difference in oxygen concentration between the exhaust gas and the ambient air results in a voltage differential between the two surfaces. This voltage serves as a measure of oxygen in the exhaust. The ceramic body of the sensor becomes conductive for oxygen ions starting at or above 572 o Fahrenheit (300 o Celsius). Sensor response time below this temperature is measured in seconds, while response time at the ideal temperature of 1112 o Fahrenheit (600 o C) is less than 50 milliseconds (ms). Some sensors have heater circuits to aid in quickly raising the sensor temperature to operating levels. Most production sensors operate only in a narrow band close to stoichiometric (14.7:1 air-fuel ratio). These sensors are used for fuel- ing corrections when the engine is at light load. Some special sensors, like part #10672, operate through a wide band of air-fuel ratios. Wide band sensors may respond much quicker, allowing fuel corrections to be safely performed on an engine operating at wide open throttle. Most aftermarket ECU’s that can use this type of sensor will read air-fuel ratios from 10:1 through 17:1. Very special units can monitor air-fuel ratios from 6:1 through 60:1 either with a custom configured ECU or laboratory test equipment. SENSORS FOR EFI SYSTEMS AIR FUEL RATIO METER #11065 #11070 #10673 #10672 10671 Heated oxygen sensor, used on #11070/11065 Air/Fuel Ratio Meter, wired with 3-pin circular connector that plugs directly into Air/Fuel Ratio Meter harness 10672 Heated wide band oxygen sensor, Bosch LSM, 18mm x 1.5 thread, 4-wire, compatible with Haltech, Motec, late-model EFI Technology ECU's, and D.T.S. dynamometers 10673 Heated wide band oxygen sesnor, Bosch LSU, 18mm x 1.5 thread, 5-wire, 13" wire leads, UNLEADED FUEL ONLY 10435 Connector assembly, for #10673, male, with housing, pins, and cable seals 10675 Oxygen sensor bung, plug, and crush washer assembly, 304 stainless steel 10676 Bung, 18mm x 1.5 female thread, for oxygen sensor, 304 stainless steel 10677 Plug, 18mm x 1.5 male thread, 5/16" female hex, 304 stainless steel 10678 Crush washer, 18mm, copper 11070 Meter ONLY, Halmeter, 30 LED air/fuel ratio indicator, 3.920" length x 1.970" width x .830" depth 11065 Meter ONLY, BZ, 16 LED air/fuel ratio indicator, 4.025" length x 2.4" width x 1.0" depth 11071 Air Fuel Ratio kit, includes #11070 meter, #10671 oxygen sensor, weld-in bung, wiring harness, and instructions 11072 Air Fuel Ratio kit, includes #11070 meter, (2) #10671 oxygen sensors, (2) weld-in bungs, dual sensor wiring harness, and instructions 11073 Air Fuel Ratio kit, includes #11065 meter, #10671 oxygen sensor, weld-in bung, wiring harness, and instructions 11074 Air Fuel Ratio kit, Accel, includes NTK wide band oxygen sensor for leaded or unleaded fuel, 2 1/16" illuminated display gauge with harness, 10:1 to 20:1 air/fuel ratio range 11066 Wiring harness, for #11070 meter, single oxygen sensor 11068 Wiring harness, for #11070 meter, dual oxygen sensors #10435 #11074 Accel/DFI wide band oxygen sensor kit with 2 1/16” illuminated display gauge and harness. NTK oxygen sensor for leaded or unleaded fuel with 10:1 to 20:1 air/fuel ratios © 2017 #10676 Bung has pilot for positioning in the exhaust tubing for welding