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Home >> Volvo >> 2000 >> S40 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Ignition And Control Systems - Component Location (644 Body) >> Location Of Components. Ems2000 (B4204T3; 2004) >> Engine Compartment
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Engine Compartment

Fig 1: Identifying Engine Compartment Components
GLL112042Courtesy of VOLVO CARS OF NORTH AMERICA.
- Component Location
1 Turbocharger (TC) control valve (turbocharged models only) On the rear side of the air cleaner (ACL) housing.
2 Engine speed (RPM) sensor On the left-hand side of the engine at the flywheel.
3 Throttle position (TP) sensor On the throttle body (TB)
4 Canister purge (CP) valve On the upper left side of the radiator
5 A/C pressure sensor -
6 Engine cooling fan (FC) The left fan behind the radiator
7 A/C fan The right fan behind the radiator
8 Intake air temperature (IAT) sensor, turbocharged models On the charge air pipe between the throttle body (TB) and the charge air cooler (CAC)
9 Boost pressure sensor 2 (turbocharged models only) On the intake manifold between the cylinder 3 and 4
10 Engine coolant temperature (ECT) sensor At the thermostat housing
11 Knock sensor (KS) The front of the engine between cylinders 2 and 3
12 The idle air control (IAC) valve On the intake manifold
13 PCV element (turbocharged models only) At the turbocharger (TC)
14 Ignition coil Cylinders 2 and 3
15 Ignition coil Cylinders 1 and 4
16 Continuous Variable Valve Timing (CVVT) valve On the cylinder head. Turbo charger (TC): Above the exhaust camshaft. Intake: Above the intake camshaft
17 Camshaft position sensor (CMP) On the camshaft.
18 Boost pressure sensor 1 (turbocharged models only) On the charge air pipe between the throttle body (TB) and the charge air cooler (CAC)
19 Mass air flow (MAF) sensor On the air cleaner (ACL) housing
20 Engine cooling fan (FC) relay, half speed In the integrated relay/fusebox, engine compartment
21 Air conditioning (A/C) compressor relay In the integrated relay/fusebox, engine compartment
22 Air conditioning (A/C) condenser fan relay In the integrated relay/fusebox, engine compartment
23 Engine cooling fan (FC) relay, full speed In the integrated relay/fusebox, engine compartment
24 System relay In the integrated relay/fusebox, engine compartment
25 Fuel pump relay. (Bi-fuel only) In the integrated relay/fusebox, engine compartment
26 EVAP canister At the right-hand front fender