Operating Instructions - Snap-on Equipment

PC Automatic Tests3DTSI TestThis section describes the Gas Emissions Tests, the primary function of theanalyzer.• TSI Test, page 3D-1• Idle Test, page 3D-8• Meters, page 3D-8• Tachometer, page 3D-8The Two Speed Idle Test (TSI) provides standardized testing so the techniciansrun the test in a similar manner from vehicle to vehicle. The TSI Test in FGA ismodeled after a California BAR97 TSI test.To begin the Two Speed Idle (TSI) Test,1. Press the Gas button and choose TSI Test from the menu.orSelect the 2 TSI Simulation command.✓ Make sure the exhaust sample probe is NOT in the vehicle tailpipeuntil after auto zero is complete.The system then prompts you through a series of preliminary tests leadingto the TSI simulation.2. If no active customer exists, the first screen that displays is the Customer/Vehicle Information screen. If you are working with a new customer, enterany required information and press OK.— If you are working with an existing customer but forgot to select thecustomer, press Cancel to close the Customer/Vehicle Information screenand then select Find Customer to activate an existing customer.✓ The TSI Test will not proceed until the Last Name, Address, Yearand GVWR fields are entered.The system then moves to the zero check.3D-1