Troubleshooting — Fuel Injection System (Nissan Bluebird T12)

The chapters in this section provide a general description of the work, with removal and installation instructions and testing techniques that are within the capabilities of the home mechanic. Before diagnosing a problem with the fuel or ignition system, always check the fuel filter, air filter, spark plugs, amount of gas in the tank, etc. first. The ignition system and fuel system are closely related, but can be tested separately. Some parts require special tools, equipment, and skill to diagnose. If testing and servicing prove too difficult, consult your dealer's service department. Remember, the most common cause of fuel and ignition problems is simply loose or broken vacuum hoses or wires, always check the hose connections and wiring first.

When performing control, in addition to the warnings given in Chapters 2 and 28 from this Section, note the following:

• (a) When installing the battery, be especially careful not to confuse the positive and negative cables.
• (b) Do not subject parts, especially the ECCS control unit, to strong shock when removing or installing.
• (c) Do not be careless when troubleshooting. Even a small contact of the clamp can disrupt the test procedure and even damage the transistor circuit.
• (d) Never attempt to repair the ECCS control unit or open the cover.
• (e) If you inspect the electronic control system components in rainy weather, make sure that water does not come into contact with the system parts. When washing the engine compartment, do not spray water on these parts or their connectors.

[The article was copied from here: Nissanbook.ru]