Complete workshop & service manual with electrical wiring diagrams for Vauxhall/Opel Omega 1994-1999. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Vauxhall/Opel Omega 1994-1999 service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

MAKE: Vauxhall/Opel
MODEL: Omega (L to T registration) Petrol
YEAR: 1994 1995 1996 1997 1998 1999

Models covered:
Vauxhall Omega Saloon and Estate models with petrol engines, including special/limited editions
1998 cc, 2498 cc & 2969 cc petrol engines

EXCERPT:
1 Ignition system - general information
Warning: Voltages produced by an electronic ignition system are considerably higher than those
produced by conventional ignition systems. Extreme care must be taken when working on the system with the ignition switched on. Persons with surgically-implanted cardiac pacemaker devices should keep well clear of the ignition circuits, components and test equipment.
2.0 litre engine
1 The ignition system is integrated with the fuel injection system to form a combined engine management system under the control of one ECU (See Chapter 4A, Section 13 for further information). The ignition side of the system is of the distributorless type, and consists of the DIS (distributorless ignition system) module and the knock sensor.
2 The DIS module is actually a four output ignition coil. The module actually consists of two separate HT coils which supply two cylinders each (one coil supplies cylinders 1 and 4, and the other cylinders 2 and 3). Under the control of the ECU, the module operates on the wasted spark principle, ie. each spark plug sparks twice for every cycle of the engine, once on the compression stroke and once on the exhaust stroke. The ECU uses its
inputs from the various sensors to calculate the required ignition advance setting and coil charging time.
3 The knock sensor is mounted onto the cylinder block and informs the ECU when the engine is pinking under load. The sensor is sensitive to vibration and detects the knocking which occurs when the engine starts to pink (pre-ignite). The knock sensor sends an electrical signal to the ECU which in turn retards the ignition advance setting until the pinking ceases.
2.5 and 3.0 litre engine
4 Refer to the information given in paragraphs 1 to 3 noting that there are two knock sensors (one for the left-hand bank of cylinders and one for the right-hand bank) and the DIS module is a six output coil consisting of three separate HT coils which supply two cylinders each.
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