Engine Harness Routing Views. Pontiac Grand Prix 1998

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 1998 🢒 Grand Prix 🢒 Engine 🢒 Engine Electrical 🢒 Engine Harness Routing Views

Engine Harness Routing Views 3100 L82 (VIN M)

Figure 1:

ECM/ENG Wiring Harness at Engine Cooling Fan


(1)	Engine Wiring Harness Connection Retainer
(2)	Fan Jumper
(3)	ECM/ENG Wiring Harness

Figure 2:

Engine Wiring Harness at IAT


(1)	ECM/ENG Wiring Harness
(2)	Torque Converter Clutch Switch
(3)	Mass Air Flow Sensor
(4)	Inlet Air Temperature Sensor

Figure 3:

A/C Compressor


(1)	A/C Compressor Clutch Coil Lead
(2)	Engine Wiring Harness Electrical Connector
(3)	Crankshaft Position Sensor Electrical Connector

Figure 4:

Knock Sensor


(1)	Knock Sensor
(2)	Engine Oil Pressure Sensor
(3)	ECM/ENG Harness Crankshaft Lead
(4)	Electrical Connection Retainer
(5)	A/C Compressor Clutch Coil Lead
(6)	A/C Compressor

Figure 5:

ECM/ENG Wiring Harness


(1)	Electrical Connection Retainer
(2)	Engine Oil Tube
(3)	ECM/ENG Wiring Harness
(4)	Engine Block
(5)	Knock Sensor

Figure 6:

Battery Cables and Ground to Engine at Starter Motor


(1)	ECM/ENG Harness Ground Terminal
(2)	Transaxle Stud Nuts
(3)	Battery Ground (Negative) Cable Lead
(4)	ECM/ENG Harness Grounds
(5)	ECM/ENG Harness Starter Solenoid Terminal Lead
(6)	Starter Solenoid Switch S Terminal Nut
(7)	Starter Solenoid Switch BAT Terminal Nut
(8)	Battery Positive Cable
(9)	Knock Sensor
(10)	ECM/ENG Harness
(11)	Engine Oil Pressure Sensor

Figure 7:

EGR Valve


(1)	EGR Valve
(2)	Throttle Position Sensor
(3)	ECM/ENG Harness
(4)	IAC Valve
(5)	ECM/ENG Harness

Figure 8:

ECM/ENG Harness to Engine


(1)	Retainer
(2)	EGR Valve
(3)	Accelerator Bracket
(4)	Spark plug Wire Harness
(5)	Retainer
(6)	DFI Bracket

Figure 9:

ECM/ENG Harness to Engine


(1)	Retainer at Tab on Power Steering Pump
(2)	Clip
(3)	ECM/ENG Harness
(4)	Power Steering Pump

Figure 10:

Engine Wiring at Generator


(1)	Generator
(2)	Generator Field Lead
(3)	Battery Positive Lead
(4)	Engine Wiring Harness Connector Retainer

Figure 11:

Electronic Ignition Control Module


(1)	Electronic Ignition Control Module
(2)	ECM/ENG Harness
(3)	Canister Vacuum Switch
(4)	Boot
(5)	Purge Solenoid
(6)	Oxygen Sensor Pigtail
(7)	Electrical Connection Retainer
(8)	Electronic Ignition Control Module
(9)	ECM/ENG Harness
(10)	Generator Output BAT Terminal Nut

Figure 12:

Oil Level Indicator


(1)	ECM/ENG Harness Oil Level Indicator Lead
(2)	Oil Level Indicator
(3)	ECM/ENG Harness

Figure 13:

LP and IP Harness Through Dash


(1)	Cockpit Harness to Floor Pan Nuts
(2)	IP Wiring Harness
(3)	Floor Pan Assembly

Figure 14:

ECM/ENG Harness at Transaxle


(1)	Transaxle Stud
(2)	P-clip
(3)	Park/Neutral Position switch Connectors
(4)	Transmission Shift Bracket
(5)	ECM/ENG Harness
(6)	P-clip
(7)	Torque Converter Clutch Switch

Engine Harness Routing Views 3800 L36 (VINK) and L67 (VIN1)

Figure 1:

Vehicle Front at Radiator


(1)	ECM/ENG Wiring Harness Connectors to PCM
(2)	ECM/ENG Wiring Harness Connector to Accessory Wiring Junction Block

Figure 2:

ECM/ENG Wiring Harness at Engine Cooling Fan


(1)	Engine Wiring Harness Connection Retainer
(2)	Fan Jumper
(3)	ECM/ENG Wiring Harness

Figure 3:

Radiator/Fan Assembly


(1)	Engine Cooling Fan Wiring Harness Connectors
(2)	Retainers

Figure 4:

Engine Coolant Level Indicator Module


(1)	Engine Coolant Level Indicator Module
(2)	ECM/ENG Wiring Harness Connector

Figure 5:

ECM/ENG Harness to Engine


(1)	Engine Wiring Harness Connection Retainer
(2)	Engine Coolant Temperature/Gauge Sensor Pigtail
(3)	Fuel Injector Lead

Figure 6:

Front View


(1)	Idle Air Control Valve Connector
(2)	Mass Air Flow Sensor Connector
(3)	Inlet Air Temperature Sensor
(4)	Throttle Position Sensor Connector

Figure 7:

Oil Level Sensor and Starter Motor


(1)	Knock Sensor (Front)
(2)	Battery Cable
(3)	Starter Solenoid Lead
(4)	Oil Level Sensor Connector
(5)	Oil Level Sensor

Figure 8:

Top View


(1)	MAP Sensor
(2)	In-Line Connection
(3)	Fuel Injector Connector
(4)	ECM/ENG Wiring Harness Assembly
(5)	Engine Coolant Temperature/Gauge Sensor Pigtail
(6)	Engine Coolant Temperature/Gauge Sensor Lead
(7)	Purge Valve Solenoid Connector

Figure 9:

EGR Valve and Heated Oxygen Sensor


(1)	EGR Valve
(2)	EGR Valve Connector
(3)	Heated Oxygen Sensor Pigtail with Connection
(4)	Heated Oxygen Sensor
(5)	Retainer to Oxygen Heat Shield

Figure 10:

EGR Valve


(1)	ECM/ENG Harness
(2)	EGR Valve
(3)	Retainers

Figure 11:

A/C Compressor


(1)	A/C Compressor Clutch Coil Lead Connector
(2)	A/C Compressor

Figure 12:

MAP Sensor


(1)	Canister
(2)	Battery Positive Lead at Generator Stud
(3)	Boot
(4)	ECM Harness Generator Field Lead
(5)	ECM/ENG Harness
(6)	Canister Vacuum Switch
(7)	MAP Sensor
(8)	ECM/ENG Harness
(9)	Fuel Injector Leads

Figure 13:

Fuel Injectors


(1)	ECM/ENG Harness
(2)	ECM Harness Generator Field Lead
(3)	ECM/ENG Wiring Harness Canister Vacuum Switch Lead
(4)	Fuel Injector

Figure 14:

Knock Sensor


(1)	Knock Sensor
(2)	Knock Sensor Jumper

Figure 15:

LP and IP Harness Through Dash


(1)	Cockpit Harness to Floor Pan Nuts
(2)	IP Wiring Harness
(3)	Floor Pan Assembly

Figure 16:

Transaxle


(1)	Throttle Position Sensor Connector
(2)	Mass Air Flow Sensor Connector
(3)	Torque Converter Clutch Switch
(4)	Park/Neutral Position Switch
(5)	Electrical Connection Retainer
(6)	Park/Neutral Position Sensors
(7)	ECM/ENG Wiring Harness Assembly
(8)	Transmission Shift Bracket

Figure 17:

Transaxle with Variable Effort Power Steering


(1)	Variable Power Steering Lead
(2)	Park/Neutral Position Switch
(3)	Torque Converter Clutch Switch

Figure 18:

Post Converter Heated Oxygen Sensor


(1)	Post Converter Oxygen Sensor Pigtail with Connector
(2)	Post Converter Oxygen Sensor Connection
(3)	ECM/ENG Wiring Harness Assembly
(4)	Tabs
(5)	Electrical Connection Retainer