Inspections/Maintenance (I/M) --Keeping our air clean Consumer Tips 1. Do not wait until the end A Consumer’s Guide of the month to get your to car inspected. Readiness Monitors 2. Do not disconnect the and battery. How They Work 3. If your “Check Engine” light comes on, do not turn it off. This will reset your car back to “not ready” status. 4. Ask your mechanic or call the Weber-Morgan Vehi- cle Emissions Center for a specific drive cycle for Vehicle Emissions Center your vehicle. 477 23rd Street Ogden, UT 84401 Phone: 801-399-7140 Website: www.webermorganhealth.org Automobiles and Air Pollution “What is a readiness Generic Drive Cycles Every car counts The specific drive cycle for each vehicle monitor?” can vary, depending on the make and The readiness monitors identify whether model. If the cycle information is not avail- the vehicle’s computer has completed a able in your owner’s manual, this generic series of required emissions tests while cycle may reset your vehicle’s monitors. the vehicle is being driven. Important: If you choose to use this generic Vehicles can perform up to 11 system drive cycle, you must obey all traffic laws tests, depending on year, make and and drive in a safe manner. model. All cars 1996 and newer are equipped with this type of monitoring 1. The on-board drive cycle begins with a system. If a test has been completed, cold start. Coolant temperatures must the system status will be reported as be below 122-degrees Fahrenheit Studies attribute 70% of all pollution “ready.” An uncompleted test will be and the coolant and air temperature affecting public health to motor vehi- reported “not ready.” sensors within 11 degrees of each cles. other. The emissions inspector cannot change Under current air-quality standards, the information reported by the vehicle. the Weber-Morgan I/M Program is re- 2. The ignition key must not be left on sponsible for keeping 28,000 pounds prior to the cold start—otherwise the “How many monitors of carbon monoxide, 1,356 pounds of heated oxygen sensor may not run. hydrocarbons and 1,356 nitrogen ox- have to be ready?” ides out of our atmosphere each day. • As soon as the engine starts, idle the The EPA guidelines allow up to two engine in drive for two and one-half minutes, with the air conditioning (A/ monitors to be “not ready” for model state, your vehicle will have to be driven in C) and rear defrost turned on. years 1996 through 1999. Vehicles a special way called a “drive cycle” which 2000 and newer allow only “not ready” • Turn the A/C and rear defrost off, and may take several weeks and up to 1,000 reading. accelerate to 55 mph under moder- miles. ate, constant acceleration. Hold at a “What do I do now?” Running through the drive cycle sets the steady speed of 55 mph for three If the only reason your vehicle failed readiness monitor so they can detect any minutes. inspection is because of a “not ready” emissions failures. Your vehicle’s specific reading, you may obtain an extension drive cycle can depend on the vehicle • Decelerate (coasting) to 20 mph with- from the Department of Motor Vehicles. make and model — and which monitors out braking or depressing clutch. Contact them at 1-800-DMV-UTAH. need to be reset. • Accelerate back to 55 to 60 mph. To allow your vehicle’s monitors to per- In most cases, two drive cycles are re- Hold for five minutes. Decelerate form their tests and reset to a “ready” quired, separated by a cool down period. (coasting) to a stop without braking.