Massachusetts Vehicle Check - Mass08 Management Module ...

Recommendations

Info

Non-Commercial Post-Combustion Types AIR The Secondary Air Injection (AIR) pumps atmospheric air into the exhaust (pre catalyst) or catalyst (post catalyst) by either a belt or electrically-driven air pump. Air pumped directly into the exhaust helps to further oxidize exhaust gases before they enter the catalyst. When the engine is cold, air is injected upstream to help reduce rich exhaust conditions and raise the temperature of the exhaust. This reduces the time for the catalytic converter to reach operating temperature. On older vehicles, once the engine reaches proper operating temperature, air is injected downstream to the catalytic converter, assisting the converter in breaking down unburned hydrocarbons (HC) and carbon monoxide (CO). Newer vehicles use an electric computer-controlled pump that directs air upstream only, since there is no longer a need to pump air downstream, due to more-efficiently designed catalytic converters. Vehicles using the AIR system are checked by the Non- Continuous Secondary Air Monitor. Catalytic Converters The 1970s was the first time that catalytic converters were installed on vehicles. The first designs of those converters were referred to as “oxidation catalytic converters.” Their main purpose was to control HC and CO emissions after the combustion process. In the 1980s, as the emissions standards became more stringent, there was a demand for the converter to control three major pollutants. This new oxidation catalytic converter is known as the three-way catalyst, controlling HC, CO and NOx. With new EPA regulations that require even lower emissions these days, some changes have been made to the design, or additions have been made to the catalyst system. Some systems have a pre-catalyst whose job is to provide reduced emissions quicker than the conventional converter. Quicker reduction is achieved by placing the pre-catalyst closer to the engine, ensuring faster heat up and emission reductions. Future converter design will use electric heater grids similar to the older Massachusetts Vehicle Check Ch. 1 - 9
Non-Commercial carburetor pre-heaters used in the 1980s. As higher voltage is made available on future vehicles, electrically-heated converters will become more commonplace, ensuring a quicker reduction of emissions. Vehicles with 42-volt systems (Saturn Vue) and other hybrids currently have the high voltage needed to carry these converters. Only the cost of these converter(s) is preventing the system from being widely used. Currently, converter efficiency is checked by the Catalyst Monitor which is non- continuous. Understanding OBD II OBD II is not a new technology. In fact, it has been around since 1994 and installed on all light duty vehicles since the 1996 model year. In the Commonwealth of Massachusetts, we will be concentrating on 1996 and newer vehicles that we will be testing in our emission program. The following pages will provide a brief overview of the OBD II system. Over the years, automobile manufacturers have been improving the emission performance of their products to comply with federal and state environmental laws. These changes included changes to body, chassis, engine, transmission, and powertrain design. Since the 1968 model year, auto manufacturers have been very innovative in designing emission control systems (ECS) and improving air/fuel metering and ignition systems. In the early 1980s, auto manufacturers began to take advantage of the innovations in computer technology and began using specialized computers to control fuel metering and ignition systems. Over time, auto manufacturers applied this technology to emission control systems and other systems such as brakes; heating and air conditioning; suspension, etc. The one main advantage computer systems have is the ability to make decisions and adjustments very quickly, based on programmed parameters and signal inputs from various sensors and monitoring devices. These systems consist of the following: Massachusetts Vehicle Check Ch. 1 - 10
Page 1 and 2: Massachusetts Vehicle Check Non-Com
Page 3 and 4: Non-Commercial Altered Vehicle Heig
Page 5 and 6: Non-Commercial Where Does Air Pollu
Page 7 and 8: Non-Commercial Carbon Monoxide Carb
Page 9 and 10: Non-Commercial weather combined wit
Page 11: Non-Commercial mixture. The charcoa
Page 15 and 16: Non-Commercial 1. A method to infor
Page 17 and 18: Non-Commercial System variations an
Page 19 and 20: Non-Commercial 20 and 31. In Januar
Page 21 and 22: Non-Commercial season. The program
Page 23 and 24: Non-Commercial The problems subject
Page 25 and 26: Non-Commercial Chapter 1 - Program
Page 27 and 28: Non-Commercial Chapter 2 - Inspecti
Page 29 and 30: Non-Commercial Chapter 2 - Inspecti
Page 31 and 32: Non-Commercial For Vehicles Not On
Page 33 and 34: Non Commercial Chapter 3 - OBD II I
Page 35 and 36: Non Commercial Other monitors run o
Page 37 and 38: Non Commercial Enabling Criteria Th
Page 43 and 44: Non Commercial If the Workstation f
Page 45 and 46: Non Commercial NOTES: The Overall R
Page 47 and 48: Non-Commercial Chapter 4 - Safety I
Page 49 and 50: Non-Commercial The License Plate: I
Page 51 and 52: Non-Commercial Inspection Of The Ve
Page 53 and 54: Non-Commercial 3. While maintaining
Page 55 and 56: Non-Commercial Hydraulic Brake Syst
Page 57 and 58: Non-Commercial B. Muffler: 1. The s
Page 59 and 60: Non-Commercial Steering Wheel Diame
Page 61 and 62: Non-Commercial Inspect For And Reje
Page 63 and 64:
Non-Commercial Chapter 4 - Safety I
Page 65 and 66:
Non-Commercial Windshield Wipers An
Page 67 and 68:
Page 69 and 70:
Non-Commercial Items to Inspect: 7.
Page 71 and 72:
Non-Commercial Headlight Aiming By
Page 73 and 74:
Non-Commercial D. Lighting Devices
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Non-Commercial B. Safety Belts (Mot
Page 83 and 84:
Page 85 and 86:
Non-Commercial Equipment Installati
Page 87 and 88:
Non-Commercial If this happens, che
Page 89 and 90:
Non-Commercial Troubleshooting The
Page 91 and 92:
Non-Commercial For more detailed in
Page 93 and 94:
Non-Commercial 4. Public Accessibil
Page 95 and 96:
Non-Commercial Hotline hours exclud
Page 97 and 98:
Non-Commercial Chapter 5 - Program
Page 99 and 100:
Non-Commercial Purchase Test Author
Page 101 and 102:
Non-Commercial Add Stickers To Inve
Page 103 and 104:
Non-Commercial If the user selects
Page 105 and 106:
Non-Commercial End Of Year Sticker
Page 107 and 108:
310 CMR 60.02: AIR POLLUTION CONTRO
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
540 CMR 4.00 ANNUAL SAFETY & COMBIN
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Appendix C Code of Massachusetts Re
Page 153 and 154:
(3) Reconstructed motor vehicles sh
Page 155 and 156:
Appendix D Ch. 90 §9D. Operation o
Page 157 and 158:
period of time which exclusion shal
Page 159 and 160:
DTC means diagnostic trouble code w
Page 161 and 162:
Motorcycle means any motor vehicle
Page 163 and 164:
VIR means Vehicle Inspection Report
Page 165 and 166:
Safety Vehicle Check List Appendix
show all

Massachusetts Vehicle Check - Mass08 Management Module ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?