For 1990-2009 cars

Figure 1: |

#### Engine Control Module (ECM)

(1) | ECM Connector C1 (Part of the Motronic Harness)
(2) | Engine Control Module
(3) | ECM Connector C2 (Part of the I/P Harness)
(4) | ECM Ground

Figure 2: |

#### APP Sensor

(1) | Accelerator Pedal Position (APP) Sensor
(2) | Hot Water Cut-Off Vacuum Solenoid Valve
(3) | Vacuum Hose (vacuum source from vacuum tank)
(4) | Vacuum Hose (vacuum output to recirculation vacuum diaphragm valve)
(5) | Recirculation Vacuum Solenoid Valve