Are you doing a late model motor swap into your classic truck? Want to know when you have a Check Engine Light? Want to display engine data on your Dakota Gauge set? The BIM-01-2 OBD-II (J1850/CAN) Interface allows you to plug directly into the engine diagnostic port, extracting engine and transmission data from the vehicle's computer (ECM). The BIM-01-2 will collect and output the following information to Dakota Digital Instrument Systems  Available on most vehicles (see below): Speedometer Tachometer Engine Temperature Check Engine Indicator Vehicle specific: Intake Air Temperature Transmission Temperature Ambient Air Temperature Gear Position Oil Pressure Boost Pressure Due to the various factory and modified ECM's, additional data including (Intake Temp, Transmission Temp, Ambient Air Temp, Oil Pressure, and Gear Position) may be available, but will vary from application to application. Dakota Digital cannot guarantee the presence or accuracy of the Coolant Temp, Intake Temp, Transmission Temp, Ambient Air Temp, Oil Pressure, Boost or Gear Position displays since this is a function of the ECM and matching OEM functional sensors. The BIM-01-2 is designed to decode the information provided by the ECM through OBD-II and supply this information to the RTX, HDX, VHX and VFD3 systems with a black plastic control module. For any BIM-compatible control boxes which contain the 3.5mm headphone jack BIM input, add part number 394193 adaptor harness.   Earlier instrument systems with an aluminum control module are not capable of BIM connectivity