Nissan Skyline R34 workshop service manual page 39

text version of content this owner's manual page from owners manual to the vehicle Nissan Skyline, year of production 1998 - 2002:

TROUBLE DIAGNOSES Symptom Matrix Chart (Cont'd) Actuator-related malfunction Symptom characteristics and inspection hints An open circuit causes no fuel injection to the corresponding cylinder, and the heated oxygen sensor output becomes lean. When the open circuits are Open observed at all cylinders, the engine will not start. Drive A short circuit causes continuous fuel injection to the corresponding cylinder, and Injector circuit Short over-rich airlfuel ratio and misfire will be noted. When the short circuits are observed at all cylinders, the engine will not start. Foreign Foreign material causes continuous fuel injection to the corresponding cylinder. Injection material Clogs Symptoms vary with the condition how the injection port is clogged. Aidfuel ratio compensation factor becomes larger. (1 10 to 125%) lgnition signal (POW& transistor L drive siqnal) (open Ignition primary signal (Power Open An open circuit causes no fuel injection to the corresponding cylinder, and the ' transistor ground) heated oxygen sensor output becomes lean. Power Open When the open circuits are observed at all cylinders, the engine will not start. supply - In case of instantaneous break, symptoms vary with the break time and the vehicle's driving conditions. Light shock or surging will occur while the vehicle lgnition coil s~de primary Open is being driven. The engine will stall when break time is long. Second- Open arY side Leaks Power Open AAC valve is fully closed. Symptoms vary with the base engine speed. When it is AAC valve supply too low, engine may stall while the vehicle is decelerating or when the power Drive Open steering load or electrical load is applied. circuit 1 Engine will not start. In case of instantaneous break, surging may occur. Fuel pump relay 1 Open Auxiliary electric fan relay Open Auxiliary electric fan will not operate even after warm-up is completed. [RB25DE, RB25DETI Open The valve will not purge. Gasoline smell may be noted when the weather is hot. Canister purge control valve The valve purges constantly. In summertime, engine may stall at idle speed due i 1 Short to rich aidfuel ratio. In wintertime, various malfunctions may occur due to lean airlfuel ratio. Variable valve timing control Open Valve timing not switched. solenoid valve Variable air intake control sole- , Open Variable air intake valve opens, and torque in low speed range is reduced. noid valve (NA) Short Variable air intake valve closes, and torque in high speed range is reduced. Air jet swirl control solenoid Open Air jet swirl control valve remains closed. valve [RB20DE (UB)] Short Air jet swirl control valve remains open. Turbo pressure control solenoid Open Swing valve opens earlier, and maximum turbo pressure is reduced. valve (TIC) Open Engine will not start because the injectors do not operate. Injector ground (Total ground) lnstanta- Symptoms vary with the break time and the vehicle's driving conditions. Surging neous break or engine stall may occur when the instantaneous break occurred during fuel I I injection. I

owners manual Nissan Skyline

owners manual Nissan Skyline - year of production: 1998, 1999, 2000, 2001, 2002 - Nissan Skyline R34 workshop service manual EN