GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy P32 RV/Van Chassis 🢒 Engine 🢒 Engine Controls - 7.4L 🢒 Engine Controls Component Views
Figure 1:

VCM, Connector Ends, IAT, MAF,Starter Relay, A/C Relay, Fuel Pump Relay
Object Number: 239806 Size: MF
(1)VCM connector, black (C4)
(2)VCM connector, gray, clear white, (C3)
(3)Vehicle Control Module (VCM)
(4)Intake Air Temperature Sensor (IAT)
(5)Mass Air Flow Sensor (MAF)
(6)VCM connector,blue (C1)
(7)VCM connector red (C2)
(8)Starter Relay
(9)A/C Relay
(10)Fuel Pump Relay
Figure 2:

Fuel Balance Module and Fuel Balance Pump (dual tanks only)
Object Number: 209617 Size: SF
(1)Fuel balance pump
(2)Fuel balance pump module
Figure 3:

Vehicle Speed Sensor (2WD)
Object Number: 209622 Size: SF
(1)Vehicle Speed Sensor (VSS)
Figure 4:

Idle Air Control, Manifold Absolute Pressure, Engine Coolant Temperature, Throttle Position Sensors
Object Number: 214402 Size: LF
(1)Idle Air Control (IAC) Valve Motor
(2)Engine Coolant Temperature (ECT) Sensor
(3)Manifold Absolute Pressure (MAP) Sensor
(4)Crankshaft Position (CKP) Sensor
(5)Throttle Position (TP) Sensor
Figure 5:

Ignition Control Module,Camshaft Position Sensor,Knock Sensor
Object Number: 214403 Size: MF
(1)Ignition Control Module
(2)Camshaft Position Sensor
(3)Engine Oil Pressure Switch
Figure 6:

Canister Purge, Linear EGR, Knock Sensor
Object Number: 214405 Size: LF
(1)Linear Exhaust Gas Recirculation (EGR) Valve
(2)Canister Purge Valve Solenoid
Figure 7:

Heated Oxygen Sensors
Object Number: 404297 Size: SF
(1)HO2S Bank 2 Sensor 2
(2)HO2S Bank 1 Sensor 2
(3)HO2S Bank 1 Sensor 1
(4)HO2S Bank 2 Sensor 1