YH4
GRAND
VITARA
ENGINE DIAGNOSIS (G16 / J20 ENGINES)
6-101
1. Injector
2. Delivery pipe
3. Fuel pressure
regulator
4. Fuel filter
5. Fuel pump
(A): Gauge
(B): Hose
(C): Attachment
TABLE B-3 FUEL PRESSURE INSPECTION
SYSTEM DIAGRAM
INSPECTION
NOTE:
Before using following flow table, check to make sure that battery voltage is higher than 11 V. If battery
voltage is low, pressure becomes lower than specification even if fuel pump and line are in good condition.
STEP
ACTION
YES
NO
1
1) Install fuel pressure gauge, referring
to “Fuel Pressure Inspection” in Section 6E1.
2) Operate fuel pump.
Is fuel pressure then 250 – 300 kPa
(2.5 – 3.0 kg / cm
2
, 35.6 – 42.7 psi)?
Go to Step 2.
Go to Step 5.
2
Is 180 kPa (1.8 kg / cm
2
, 25.6 psi) or higher
fuel pressure retained for 1 minute after
fuel pump is stopped at Step 1?
Go to Step 3.
Go to Step 4.
3
1) Start engine and warm it up to normal
operating temperature.
2) Keep it running at specified idle speed.
Is fuel pressure then within 210 – 260 kPa
(2.1 – 2.6 kg / cm
2
, 29.8 – 37.0 psi)?
Normal fuel pressure.
Clogged vacuum
passage for fuel
pressure regulator or
faulty fuel pressure
regulator.
4
Is there fuel leakage from fuel feed line
hose, pipe or joint?
Fuel leakage from
hose, pipe or joint.
Go to Step 10 on the next
page.
5
Was fuel pressure higher than spec. in Step 1?
Go to Step 6.
Go to Step 7.
6
1) Disconnect fuel return hose from fuel pipe
and connect new hose to it.
2) Put the other end of new return hose into
approved gasoline container.
3) Operate fuel pump.
Is specified fuel pressure obtained then?
Restricted fuel return
hose or pipe.
Faulty fuel pressure
regulator.
7
Was no fuel pressure applied in Step 1?
Go to Step 8 on the
next page.
Go to Step 9 on the next
page.
(Low pressure is
measured.)
Содержание 2000 Grand Vitara SQ416
Страница 75: ...ENGINE DIAGNOSIS G16 J20 ENGINES 6 71 Fig 1 for Step 3...
Страница 179: ...6 1 68 ENGINE H25 ENGINE a Fig for STEP 2 3 a HO2S heater relay...
Страница 190: ...ENGINE H25 ENGINE 6 1 79 a Fig for STEP 2 3 a HO2S heater relay...
Страница 205: ...6 1 94 ENGINE H25 ENGINE Fig for STEP 4 1 Disconnected CMP sensor coupler 2 BI B wire terminal 3 Gr Y wire terminal...
Страница 541: ...6E1 4 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES G16 ENGINE...
Страница 542: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 5...
Страница 543: ...6E1 6 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES J20 ENGINE...
Страница 544: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 7...
Страница 549: ...Or W Bl G Bl Y C51 1 22 C51 1 23 C51 1 10 C51 1 11 6E1 12 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES...
Страница 552: ...ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES 6E1 15...
Страница 592: ...6E2 4 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE...
Страница 593: ...ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE 6E2 5...
Страница 597: ...ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE 6E2 9...
Страница 661: ...IGNITION SYSTEM FOR J20 H25 ENGINES 6F2 13 INSTALLATION For installation reverse removal procedure...
Страница 723: ...6H 30 CHARGING SYSTEM 17 Make sure that rotor turns smoothly...
Страница 729: ...Prepared by Overseas Service Department 1st Ed April 2000 Printed in Japan Printing April 2000 736...