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Vehicle Emissions Inspection Types and Certified Analyzers

Types of inspections and certified analyzers in use by area

Types of Vehicle Inspections

Certified Vehicle Emissions Analyzers


Vehicle Emissions Inspection Types

ASM:  A vehicle emissions inspection for nitrogen oxides (NOx), carbon dioxide (CO2), hydrocarbons (HC), and carbon monoxide (CO) for vehicles model-year 1995 and older.  The ASM inspection uses a dynamometer (a set of rollers on which a vehicle's tires rest) which applies an increasing load or resistance to the drive train of a vehicle, thereby simulating actual tailpipe emissions of a vehicle as it is moving and accelerating.  The ASM inspection is comprised of two phases:

(1) the 50/15 mode, where the vehicle is inspected on the dynamometer simulating the use of 50% of the vehicle's available horsepower at a constant speed of 15 mph and

(2) the 25/25 mode, where the vehicle is inspected on the dynamometer simulating the use of 25% of the vehicle's available horsepower at a constant speed of 25 mph.

OBD: Computer system installed in a vehicle by the manufacturer which monitors the performance of the emission control equipment, fuel metering system, and ignition system.  The OBD system detects malfunction or deterioration in performance of components that would cause the vehicle not to meet emissions standards.

TSI: A vehicle emission inspection for CO2, HC, and CO for vehicles model-year 1995 and older.  The TSI inspection is an idle inspection comprised of two phases:

(1) a high speed inspection at 2,200-2800 revolutions per minute (RPM) and

(2) an idle inspection at 350-1,200 RPM.

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Houston-Galveston- Brazoria and Dallas-Fort Worth Program Areas

Certified ASM Analyzers

  • Environmental Systems Products Inc. (ESP)
    • Model number 10400-57
    • Estimated price: $37,995 new, call for discounted pricing on refurbished equipment
    • Extended service contract prices good from May 1, 2012, to April 30, 2013
    • Full coverage: analyzer, dynamometer, and zero air generator (ZAG) - $3998 annually, $1,110 quarterly, $335 monthly
    • Basic coverage: covers analyzer and dynamometer only, no ZAG coverage - $3,466 annually, $953 quarterly, $289 Monthly
    • Sales information: (888)377-7971
    • Extended service contract information: (800)695-4377
  • Worldwide Environmental Products (Worldwide)
    • Model number EIS-5000S with serial numbers beginning with TX
    • Estimated price: $25,500 new analyzer with fully refurbished dynamometer
    • Extended service contract prices good from May 1, 2012, to April 30, 2013
    • Extended service contract price: $4,861.00 annually, $2,509.00 semi-annually, $1,233.20 quarterly, $429.00 monthly 
    • Sales information: (800)832-7664
    • Extended service contract information: (800)832-7664, extension 103
  • Snap On Diagnostics
    • Model number EEEA110A currently not being sold
    • Model number EEEA110B currently not being sold
    • Model number EEEA116A currently not being sold
    • Extended service contract prices good from May 1, 2012, to April 30, 2013
    • Extended service contract price: $4,650.00 annually
    • Extended service contract information: (800)225-5786

Certified OBD-only Analyzers

  • ESP
    • Model number 10400-60
    • Estimated price: $7,495
    • Extended service contract prices good from May 1, 2012, to April 30, 2013
    • Extended service contract price: $786 annually, $216 quarterly, $67 monthly
    • Sales information: (888)377-7971
    • Extended service contract information: (800)695-4377
  • Worldwide 
    • Model number EIS-6000S with serial numbers beginning with TX
    • Estimated price: $7,195 
    • Extended service contract prices good from May 1, 2012, to April 30, 2013
    • Extended service contract price: $1,131.00 annually
    • Sales information: (800)832-7664
    • Extended service contract information: (800)832-7664, extension 103
  • Snap On Diagnostics:
    • Model number EEEA134A OBIS currently not being sold
    • Extended service contract prices good from May 1, 2012, to April 30, 2013
    • Extended service contract price: $1195 annually
    • Sales and extended service contract information: (800)225-5786

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Austin and El Paso Program Areas

Certified TSI Analyzers

  • ESP
    • Model number ESP10400-78
    • Estimated price: $15,995
    • Extended service contract price good from May 1, 2012, to April 30, 2013
    • Full coverage: analyzer and ZAG - $2,230 annually, $613 quarterly, $186 monthly
    • Basic coverage: analyzer only, no ZAG coverage - $1,679 annually, $462 quarterly, $141 monthly
    • Sales information: (888)377-7971
    • Extended service contract information: (800)695-4377
  • Worldwide
    • Model number EIS-5400S, EIS-6400 with serial numbers beginning with TX
    • Estimated price: $15,495
    • Extended service contract price good from May 1, 2012, to April 30, 2013
    • Extended service contract price: $2,447.00 annually, $213.00 monthly
    • Sales information: (800)832-7664
    • Extended service contract information: (800)832-7664 extension 103

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