SLC Gauge User Manual
Contents
1. POINT CUTTING EDGE IN MOTION SLC Gauge User Manual Warning SLC Gauge is designed for Gasoline fuel only Lambda Sensor gets very hot during normal operation be careful when handling it Do not install Lambda Sensor in such a manner that the unit is powered before your engine is running An engine start can move condensation in your exhaust system to the sensor if the sensor is already heated this can cause thermal shock and cause the ceramic internals inside the sensor to crack and deform While the Lambda Sensor is in an active exhaust stream it must be powered Carbon from an active exhaust can easily build up on an unpowered sensor and ruin it Lambda sensor life when used with leaded fuels is between 100 500 hrs The higher the metal content the shorter the life of the Lambda sensor Package Contents 1x SLC Gauge 1x Metal bracket 2x washer 2x nut 2x bolt 1x Combination cable sensor power input outputs 1x O2 Bung Exhaust Installation Lambda Sensor should be installed between the 10 o clock and the 2 o clock position less than 60 degrees from vertical this will allow gravity to remove water condensation from the sensor For all Oxygen sensor installations the sensor must be installed before the catalytic converter For normally aspirated engines the sensor should be installed about 2ft from the engine exhaust port For Turbocharged engines the sensor should be installed about 3ft from the engine exhaust port after the tur2. ase price of its products 14Point7 products should not be used on public roads
3. bocharger For Supercharged engines the sensor should be installed 3ft from the engine exhaust port Installing the sensor too close to the engine exhaust port may overheat the sensor installing the sensor too far from the exhaust port may leave the sensor too cool both will cause damage to the sensor and lead to wrong measurements Wiring If you plan on using SLC Gauge as just a visual display of Air to Fuel ratios Only Red Black and Blue wires need to be connected The Black and Blue wires can be grounded at the same location If you plan on interfacing the Linear Output to a device such as an ECU or datalogger Black wire should be grounded where interfacing device is grounded Blue wire should be grounded to engine block or chassis Wire Color_ Name Connectsto _ Red Power Switched 12lv 12 should be live only when engine is running Black Electronics Ground Ground Ground Blue Heater Ground Ground G round Olv 10 AFR Linear to 5 v 20 AFR for gasoline ECU if required Switch point 14 7 AFR for gasoline fuel Dim Headlight Power Half brightness when 12 v full brightness when lt 12 v Leave disconnected if night dimming is not required Warranty 14Point7 warrants SLC Gauge to be free from defects for 2 years Sensors if purchased from 14Point7 carry no warranty whatsoever Warranty does not cover user error and abuse Disclaimer 14Point7 is liable for damages only up to the purch
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