Fuel Pressure Regulator Valve -N276-, Checking
Special Tools And Workshop Equipment Required
- Measuring Container, Fuel-Resistant
Procedure
-- Remove the engine cover, refer to ENGINE COVER .
-- Loosen the clamp -arrow-, and remove fuel hose from the high pressure reservoir.
-- Seal the open return line connections with a blind plug.
Danger of malfunction caused by dirt.
- Follow the guidelines for clean working conditions, refer to CLEAN WORKING CONDITIONS .
-- Follow the guidelines for clean working conditions, refer to CLEAN WORKING CONDITIONS .
-- Connect the hose -3- to the return connection for the high pressure reservoir -2-.
1) Checking with the Engine Running
-- Start the engine and let it run in idle.
- Specified value: in 30 seconds greater than 75 ml (2.5 oz)
If the specified value is not attained, then the Fuel Pressure Regulator Valve -N276- is faulty.
2) Checking with the Engine Running
Is the requirement under 1) met, increase engine speed ≥ 2000 RPM
- Specified value: Return quantity 0 ml
- A small amount of dripping is permissible.
- If the specified value is not attained, then the Fuel Pressure Regulator Valve -N276- is faulty.
3) The Engine Does Not Start
Perform the test at starting RPM.
- Specified value: Return quantity 0 ml
- A small amount of dripping is permissible.
- If the specified value is not attained, then the Fuel Pressure Regulator Valve -N276- is faulty.
-- Install the engine cover, refer to ENGINE COVER .