MANUALS · FUEL [13] · страница 192 из 340 · Открыть оригинал PDF ↗

Текст распознан со скана. Числа и обозначения можно сверить с оригиналом ниже.

(9) Disconnect the vacuum hose (blue stripe) from the intake
manifold and plug the nippleThen measure fuel pressure_
Standard value: 330-370 kPa (3.3-3.5 kg/cm?,
47-53 psi) at curb idle speed

(1O)Check tobe sure that the fuelpressure duringidlingdoes not
decrease even aftertheengine is raced a few times

(11)Usea finger to gently press the fuel return hose while repeat-
edly racing the engine, and check to be sure that there is fuel
pressure in the return hose also.

NOTE

There will be no fuel pressure in the return hose if there is
insufficient fuel flow:

(12)lf the fuel pressure measured in steps (8) to (11) deviates
from the standard value range, check for the probable cause
by referring to the table below, and then make the appropri-
ate repair:

Таблица в оригинале

Распознанный текст таблицы — требует сверки с оригиналом

Condition	Probable cause	Remedy
Fuel pressure is too low: Fl d di i	Fuel filter is clogged.	Replace the fuel filter:
ue pressure rops urng racng No fuel pressure in fuel return hose.	Malfunction of the valve seat within the fuel pressure regulator; or fuel leakage to return side caused by spring deterioration:	Replace the fuel pressure regulator:
	Fuel pump low discharge pressure_	Replace the fuel pump:
Fuel pressure is too high	The valve within the fuel pressure regulator is sticking:	Replace the fuel pressure regulator:
	Clogging of the fuel return hose andlor the pipe.	Clean or replace the hose and/or pipe
No change of the fuel pressure when vacuum hose is connected and when not connected.	Damaged vacuum hose or nipple clogging:	hose, Replace the vacuum or clean the nipple.

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