For 1990-2009 cars

Figure 1: |

#### ECM Power, Ground, Serial Data, and MIL

Figure 2: |

#### Engine Data Sensors - 5-Volt Reference Bus

Figure 3: |

#### Engine Data Sensors - Low Reference Bus

Figure 4: |

#### Engine Data Sensors - Pressure, Temperature, MAF, VSS

Figure 5: |

#### Engine Data Sensors - Oxygen Sensors

Figure 6: |

#### Engine Data Sensors - Electronic Throttle Controls

Figure 7: |

#### Ignition Controls - Bank 1 Ignition Coils

Figure 8: |

#### Ignition Controls - Bank 2 Ignition Coils

Figure 9: |

#### Ignition Controls - CMP Sensors and Solenoids

Figure 10: |

#### Ignition Controls - CKP, Knock Sensors and IMRC Solenoid

Figure 11: |

#### Fuel Controls - Fuel Pump and Injectors

Figure 12: |

#### Fuel Controls - EVAP Controls

Figure 13: |

#### Controlled/Monitored Subsystem References