Articles in this category Supported gauges? (Please be sure to read this entire article) One of the most common questions received is if UltraGauge will d... Repair & Internal Parts? We offer no repair services or internal parts. Many years ago we once offered repair services and various in... Repair services? Beyond warranty repair, UltraGauge offers no repair services of any kind. We do offer update ... Compatibility Will UltraGauge work with my vehicle?The following must be true: 1. "OBDII Certified" is p... Vehicle impaired when UltraGauge is attached Examples of impairment are the traction control or other dash indicators may become lit, or the speedometer or... Diesel MPG Accuracy & Calibration Until calibrated, fuel and mileage estimates for Diesel vehicles may be as much as 3x off. It is necessary... Air to Fuel ratio (AFR) Air to Fuel Ratio (AFR) Toyota Tacoma 2001-2004 with ABS (The solution options below apply to other vehicles as well) The 2001-2004 Tacoma with 6 lug wheels a... MPG Accuracy Please see the Fuel calibration section of the user manual before reading further. The MPG, Gallons/hour When things go wrong, perform a system reset Often configuration changes are made without understanding their affect and this results in unexpected behavio... UltraGauge does not power on when connected The OBDII connector not only provides a communication path for UltraGauge, it also supplies UltraGauge with po... UltraGauge does not detect ignition on, does not power up Ultra-Gauge supports several ignition-on detection modes. Please see the "Power On Detect Mode" section in th... Fuel Sender detection All vehicles have a fuel sender. However, not all manufactures/models make the fuel sender data available via... Calibration Please follow the fuel calibration procedure in the most current user manual. Please be sure to read th Few gauges found If the ignition switch is switched off during the gauge discovery phase, few gauges may be found. The... Check Engine Light Be sure that the ignition is in the RUN position, engine off, when reading or clearing trouble codes Trouble... Vehicle specific Battery Drain **** This issue was resolved with the introduction of UltraGauge EM version 1.2, which began shipping on 6/27... Battery drain (concerns about) UltraGuage draws power from the OBDII connector, which in turn is drawn directly from the battery. The p... 2012+ Mazda 3 and other models The 2012+ Mazda 3 and CX5 and perhaps other models, have a defect in its computer firmware. When the ignition... Connector difficult to unplug The OBDII connector on the vehicle has a locking tab that retains the UltraGauge OBDII connector, as can be ... F-xxx Ford Diesel trucks (Regarding UltraGauge Blue, see below) Early on in the life of UltraGauge several Ford Diesel Truck o... Multiple vehicle use? UltraGauge can be moved from vehicle to vehicle. UltraGauge will scan and detect the protocol of the tar...