Vehicle Emission Control Information

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1B-2                                                                                    Description and Operation




                   Vehicle Emission Control Information


  Vehicle Emission Control Information (VECI) Decal
  Each vehicle is equipped with a Vehicle Emission Control Information (VECI) Decal (Figure 1)
  containing emission control data that applies specifically to that vehicle and engine. The
  specifications provided on the decal are critical to servicing systems. The VECI decal is located
  under the hood next to the prop rod slot (Figure 2).

  Figure 1: Typical Vehicle Emission Control Information (VECI) Decal




  In addition to the tune-up specifications and procedures, the emission decal shows a schematic of
  the engine vacuum system.




                                                 1996 Powertrain Control/Emissions Diagnosis Villager OBD II August, 1995
Description and Operation                                                                                             1B-3




                  Vehicle Emission Control Information


                            Figure 2: Vehicle Emission Control
                            Information (VECI) Decal Location




  Emission Control System Information
                                       EMISSION CONTROL INFORMATION
                                           System                        3.0L Engine
                            Catalyst and Exhaust                    TWC
                            Warm Up Catalyst                        WU- TWC
                            Catalyst Location                       UB
                            EGR                                     VCC
                            EVAP                                    EVAP CSP
                            IAC                                     IAC FIC, BPA
                            PCV                                     CONV
                            Ignition                                TI
                            EGR Back Pressure Transducer            EGR BPT




                                                    1996 Powertrain Control/Emissions Diagnosis Villager OBD II August, 1995
1B-4                                                                                 Description and Operation




                   Vehicle Emission Control Information


  Abbreviations:                                   IAC FIC - Idle Air Control Fast Idle Control
  BPA - Bypass Air
                                                   PCV - Positive Crankcase Ventilation
  CONV - Conventional Systems
                                                   TI - Transistorized Ignition
  EGR - Exhaust Gas Recirculation
                                                   WU- TWC - Warm Up Three Way Catalytic
                                                   Converter
  EGR BPT - Exhaust Gas Recirculation Back
  Pressure Transducer
                                                   TWC - Three Way Catalytic Converter
  EVAP - Evaporative Emission
                                                   UB - Underbody
  EVAP CSP - Evaporative Emissions Canister
                                                   VCC - Vacuum Cut Control Solenoid
  Storage/Purging

  IAC - Idle Air Control




                                              1996 Powertrain Control/Emissions Diagnosis Villager OBD II August, 1995
Description and Operation                                                                                               1B-5




           Engine/Vehicle Applications and VIN Location


  Application Chart
                                            APPLICATION CHART
                                             System                         Application
                            Engine                                              3.0L
                            Cylinders                                             6
                            Injection                                            SFI
                            Valves per Cylinder Intake/Exhaust                   1/1
                            Camshaft, Belt Drive                                OHC
                            Free Wheeling                                        Yes


  Vehicle Identification Number

  The official Vehicle Identification Number (VIN) for title and registration purposes is stamped on a
  metal plate. The plate is fastened to the instrument panel near the windshield on the driver side of
  the vehicle (Figure 3) and is visible from the outside. The vehicle identification number is 17
  characters long.

  The last six digits of the vehicle identification number indicate the serial number of each unit built
  at each assembly plant. The production serial number begins with 100,000 and may sequence
  through 999,999.

                            VIN Location




                                                      1996 Powertrain Control/Emissions Diagnosis Villager OBD II August, 1995
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