10.11. Intake manifold
1. Throttle body mounting frame; 2. Bolt; 3. Collector; 4. Nut; 5. Hose to the heater; 6. Temperature sensor (for engine management system); 7. Hose fitting to valve cover; 8. Brake booster hose nipple; 9. Hose to thermostat.
1. If damage occurs in the fuel injection system, first check that the wiring connectors are securely connected and not corroded. Then make sure that the air cleaner element is clean, the spark plugs are in good condition with the gaps adjusted correctly, the compression in the engine cylinders is normal, the ignition timing is adjusted correctly, the engine breather hoses are not clogged or damaged.
2. If all components are OK and the adjustments are correct, contact your dealer. A diagnostic connector is included in the engine management system wiring harness, and special testing equipment can be connected to it, with which you can "interrogate" the engine management system. This method can accurately, quickly and easily determine damage. By checking the serviceability of all system components separately, damage can be determined by the method of elimination (replacing the units one by one with known good ones), but this method is time consuming and there is a high risk of damaging the internal components of the ECU.
3. Experienced car enthusiasts, with an accurate tachometer and exhaust gas analyzer, can check the CO content in the exhaust gas and the engine idle speed; if they differ from the values given in Specifications, you must contact your dealer. Neither the fuel-air mixture (cO content in exhaust gas) it is not possible to manually adjust the idle speed; if the test results show deviations, this indicates damage in the fuel injection system.
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