Specifications of the fuel system and engine management (Opel Vectra C)

General parameters

Fuel - See Specifications in Chapter 1.

Fuel Tank - See Chapter 1 Specifications.

Specific fuel consumption/CO₂ emissions - see Specifications to Chapter "Controls and operating techniques".

Power supply system type

Petrol models

All models are equipped with a distributed sequential injection system controlled by the ECM. Injection is carried out into the intake ports of the cylinders.

Diesel models

All models are equipped with a direct injection system with electronic control. Z19DT(H)/Y30DT engines with a common fuel rail ("Common Rail").

Engine Management System (ECM) Type

Trade designationEngine brand	1.6 Z16XE	1.8 Z18XE	2.0 Turbo Z20NET	2.2 Z22SE	2.2 direct Z22YH	3.2 V6 Z32SE	1.9 CDTI Z19DT	1.9 CDTI Z19DTH	2.0 DTI Y20DTH	2.2 DTI Y22DTR	3.0 V6 CDTI Y30DT
ECM type	Multec S	Simtec71	Trionic 8	GMPT-E15	Simtec 81	ME 3.1.1	EDC 16C9	EDC 16C9	PSG 16	PSG 16	Denso-0100

Technical characteristics of the power supply system

Low pressure fuel pump type - Electric, submersible, placed inside the fuel tank.

High pressure fuel pump.

Diesel engines Z19DT(H)/Y30DT and petrol models with turbocharger — high pressure fuel pump "Common Rail" (without fuel distribution function)

Diesel engines

Y20DTH/Y22DTR — distributor type fuel injection pump

Adjustment data

Both petrol and diesel models are controlled by electronic devices. Any adjustment of the fuel system parameters should be made only at a service station using special diagnostic equipment.

Tightening force of threaded connections, Nm

Material copied from this portal OPELBOOK

All engines

Gas pedal mounting nuts - 12

Fuel tank mounting strip fastening bolts - 20

Nuts for fastening the exhaust system components:

• Intake pipe nuts (except Z32SE) — 20
• Nuts for connecting clamps - 50

Petrol engines

Fuel distribution line fasteners - 8

Union nuts for fastening fuel lines to the fuel distribution line — 15

Nut for fastening the ground cable to the generator - 15

Z16XE/Z18XE engines

Lambda probes - 30

Engines Z22YH/Z22SE/Z20NET

Lambda probes - 30

Z32SE Engine

Exhaust system mounting nuts - 30

Lambda probes - 40

Diesel engines

Fuel filter clamp nuts - 25

Z19DTH Engine

Glow plugs - 8

Fuel injection pump mounting nuts - 25

Soot filter:

• Front Joint Fastening - 20
• Temperature sensor union nut - 55
• Bracket mounting bolts - 20

Engine Y20DTH/Y22DTR

Glow plugs - 10

Y30DT Engines

Glow plugs - 18

Fuel injection pump mounting bolts - 21

Injector mounting bracket bolts:

• M6 - 5
• M8 - 20