Self-diagnosis procedure The self-diagnosis procedure is discussed above on pages 4-5. Only the self-diagnosis codes differ. Malfunctions *1: D15Z6 engine. O15Z7, D16Y5 (KQ model) *2: D16Y5 engine (KG, KE): D15Z7, D16Y8, В15А4, В16А5 *3: Models...
Idle control system Thermal fast idle valve (engine V16A5) Description To prevent movement instability when the engine warms up, it is necessary to increase the idle speed. The thermal fast idle valve is controlled by a thermoparaffin...
Fuel pressure Pressure release Before disconnecting fuel hoses and lines, relieve pressure from the system by loosening the service bolt at the top of the fuel filter. Do not smoke while working on the fuel system. Keep open flames...
Injectors — check and replacement Note: Before starting the test, check the following: idle speed, fuel injection and CO 2 at idle. If the engine is running: 1. With the engine idling, disconnect each injector connector individually and observe the...
FIRST Fuel pressure regulator Examination Attention: Do not smoke during the test. Keep open flames away from your work area. 1. Attach the special tool to the service port on the fuel filter. The pressure should be: engine D15Z6, D15Z7: 226-175 kPa...
Fuel filter Replacement Warning: Do not smoke while working on the fuel system. Keep open flames away from your work area. When replacing the fuel filter, maintain a safe distance between the battery terminals and tools. If the...
Description of the exhaust gas emissions reduction system The exhaust emission control system includes a catalytic converter (TWC), exhaust gas recirculation system (EGR), crankcase ventilation system (PCV) and fuel vapor accumulator system (EVAP). *1 Models with neutralizer...
KART throttle body Description Throttle bodies are a single chamber horizontal flow design (except for the D16Y7 engine) and vertical flow (engine D16Y7). The lower part of the throttle valve is heated by the engine coolant from the...
Exhaust emission control system — exhaust Examination Do not smoke while performing this procedure. Keep open flames away from your work area. 1. Attach the tachometer. 2. Start the engine. Leave at 3000 rpm without load (A/T in [N] or [P], M/T in neutral)...
Three way catalytic converter (TWC) (models with neutralizer) Description Three way catalytic converter (TWC) used to convert hydrocarbons (NS), carbon monoxide (CO) and nitrogen oxides (NOx) in exhaust gases into carbon dioxide (CO 2 ), nitrogen (N 2 ) and water vapor. Inspection...
Crankcase ventilation system (PCV) Description Ventilation system (PCV) designed to prevent crankcase gases from entering the atmosphere. The PCV valve contains a spring-loaded plunger. When the engine starts, the plunger in the PCV valve rises in...
Removing fuel vapors (EVAP) Examination (engine D15Z7, D16Y6, V16A4, V16A5, V16A6) 1. Remove the fuel tank cap. 2. Start the engine and leave it idling. 3. Disconnect the vacuum hose from the EVAP purge control diaphragm valve and attach a vacuum...