Engine Management

4��EMS - Part 1 of 2:

9�EMS - Part 2 of 2:

Diagram Symbols:

Key to Circuit
1 Engine Control Module
2 Flexible Fuel Select Link (Dealer Fit)
3 Manifold Absolute Pressure Sensors A - A Bank; B - B Bank
4 Throttle Position Sensor 4.1 Idle Switch
5 Engine Coolant Temperature Sensor
6 Intake Air Temperature Sensor
7 Heated Oxygen Sensors
1 - A Upstream
2 - A Downstream
3 - B Upstream
4 - B Downstream
8 Camshaft Position Sensor
9 Crankshaft Position Sensor
10 Engine Speed Sensor
11 Idle Air Control Valves A - A Bank; B - B Bank
12 Fuel Pump 2
13 Fuel Pump Relay 2
14 Fuel Pump 1
15 Fuel Pump Relay 1
16 Evaporative Emission Control Valves A - A Bank; B - B Bank
17 Secondary Air Injection Relay
18 Secondary Air Injection Switching Valve
19 Secondary Air Injection Clutch
20 Fuel Injector Relay (Main Relay)
21 A Bank Fuel Injectors
22 B Bank Fuel Injectors
23 Ignition Coil Relay
24 A Bank Ignition Coils
25 A Bank Ignition Module
26 B Bank Ignition Coils
27 B Bank Ignition Module

A Instrument Pack: Engine Speed
B Air Conditioning: Engine Speed
C Trip Computer: Fuel Used
D Instrument Pack: MIL (Check Engine)
E Transmission: Engine Torque
F Transmission: Throttle Position
G Air Conditioning: Load Inhibit
H Transmission: Torque Control
I Transmission: Vehicle Speed
J Transmission: Engine Speed
K Air Conditioning: Screen Request
L Air Conditioning: Air Conditioning Request
M Security: Start Inhibit
N Transmission: Park; Neutral
O Instrument Pack: Fuel Level
P Data Link: Serial Input
Q Data Link: Serial Output
R Steering: Pas Pressure Switch
S Starter Relay: Crank Signal
T A/C Compressor: Clutch Control