What are the intake and exhaust valves on a Nissan QG18DE?
Intake valves duration is 236° and exhaust valves duration is 222° for engines with valve timing control system and 222°/222°, respectively for engines without NVCTS. The QG18DE does not have hydraulic lifters, so special shims are used to adjust the valve clearance.
How to remove the timing chain on a Nissan Sentra?
Timing chain tension guide The rotating direction is shown from the engine front. Disconnect battery negative terminal. Refer to PG-50, “Exploded View”. Drain engine oil. Refer to LU-8, “Draining”. Perform this step when engine is cold. Remove intake manifold. Refer to EM-27, “Exploded View”. Remove the rocker cover.
What does the ECM do on a Nissan QG18DE?
The QG18DE engine uses the ECCS (Electronic Concentrated engine Control System). This system controls the fuel injection, ignition timing and idle RPM as one single control unit. The amount of fuel injected from the fuel injector is determined by the engine ECM.
How does the Nissan QG18DE ignition system work?
The Nissan QG18DE ignition system is controlled by the ECU to maintain the best air-fuel ratio for every running condition of the engine. The ignition timing data is stored in the ECM, this data forms the map shown. The ECM receives information such as the injection pulse width and camshaft position sensor signal.
Timing chain tension guide The rotating direction is shown from the engine front. Disconnect battery negative terminal. Refer to PG-50, “Exploded View”. Drain engine oil. Refer to LU-8, “Draining”. Perform this step when engine is cold. Remove intake manifold. Refer to EM-27, “Exploded View”. Remove the rocker cover.
Intake valves duration is 236° and exhaust valves duration is 222° for engines with valve timing control system and 222°/222°, respectively for engines without NVCTS. The QG18DE does not have hydraulic lifters, so special shims are used to adjust the valve clearance.
The QG18DE engine uses the ECCS (Electronic Concentrated engine Control System). This system controls the fuel injection, ignition timing and idle RPM as one single control unit. The amount of fuel injected from the fuel injector is determined by the engine ECM.
The Nissan QG18DE ignition system is controlled by the ECU to maintain the best air-fuel ratio for every running condition of the engine. The ignition timing data is stored in the ECM, this data forms the map shown. The ECM receives information such as the injection pulse width and camshaft position sensor signal.