All vehicles registered in Texas are required to receive an annual inspection that includes comprehensive safety inspection for -
Wipers, Horns, Steering, Tires, Seat Belts, License Plates, Tail Lamp, Head Lamp, Gas Caps and more.
The type of emission test for your vehicle is determined by your location and the age of the vehicle. We are located in Travis county so we provide the following emission tests.
1995 and older vehicles will receive the Two Speed Idle (TSI) test while 1996 and newer vehicles receive the On-Board Diagnostic (OBDII) test.
On Board Diagnostics - Second Generation Test:
On Board Diagnostics-Second Generation (OBDII) is a computerized system on 1996 and newer model year vehicles that monitors emissions-related components and systems for proper functionality. The OBDII utilizes an on board computer to test and monitor all the emissions-related components and systems of the vehicle.
OBDII testing uses a scan tool that plugs into the vehicle's computer and determines that the emission system and components are working properly.
The Advantages Of OBDII Testing -
OBDII testing is quicker than previous emissions tests. This test determines whether there is a malfunction and/or deterioration of the devices that control the exhaust-emissions level. It can lower repair costs by detecting and storing a code specific to the problem. The OBDII test should readily identify vehicle problems, thereby reducing repair time and costs. This will, in turn, contribute to lower vehicle exhaust emissions.
Some Reasons Your Vehicle May Fail The OBDII Test - ( On Board - Diagnostic Second Generation )
- Catalytic Converter failure,
- Faulty gas cap,
- Fuel metering out of specification,
- Incorrect ignition timing,
- Inoperative injection system and/or thermostatic air cleaner,
- Mis-routed vacuum lines, and
- Faulty Positive Crankcase Ventilation (PCV) System or Exhaust Gas Recirculation (EGR) System.
Two Speed Idle Test:
The Two-Speed Idle test is a tailpipe emissions test. This means the analyzer measures exhaust emissions directly from the vehicle's tailpipe with the engine idling at a high and then low speed. TSI measures most of the common factors contributing to the formation of lung damaging ground level ozone.
A vehicle will fail the test if there are excessive amounts of hydrocarbons or carbon monoxide. TSI is used for older vehicles that are not equipped with the advanced on-board diagnostic computer system.
A Few Reasons Why Your Vehicle May Fail the TSI ( Two Speed Idle ) Test
Excessive Hydrocarbons (HC):
High hydrocarbon emissions result when fuel in the engine does not burn completely. HC in the presence of oxides of nitrogen (NOx) and sunlight may form ground-level ozone, a major component of urban smog -
- Internal Engine Problems
- Faulty Air Pump
- Ignition System
- Exhaust Gas Recirculation System (EGR)
- Catalytic Converter
- Gas Cap
Along with cash and checks!