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