1999 TOYOTA CAMRY 1mz injectors

P23917
DI±206
± DIAGNOSTICSENGINE (1MZ±FE)
441 Author: Date:
8 Check for spark.
PREPARATION:
(a) Remove the ignition coil or disconnect the high±tension
cord from the spark plug.
(b) Remove the spark plug.
(c) Install the spark plug to the ignition coil or high±tension
cord.
(d) Disconnect the injector connector.
(e) Hold the end about 12.5 mm (0.5 in.) from the ground.
CHECK:
Check if spark occurs while engine is being cranked.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, don't crank the engine for more than 5 ~ 10
seconds at a time.
OK:
Spark jumps across electrode gap.
NG Proceed to page IG±1 and continue to
troubleshoot.
OK
Proceed to problem symptoms table on page
DI±221.

A00221P25779
P23917
± DIAGNOSTICSENGINE (1MZ±FE)
DI±279
514 Author: Date:
2 Check spark plug and spark of misfiring cylinder.
PREPARATION:
(a) Remove the ignition coil (See page IG±7).
(b) Remove the spark plug.
CHECK:
(a) Check spark plug type.
(b) Check for carbon deposits on electrode.
(c) Check electrode gap.
OK:
(a) Twin ground electrodes type.
Recommended spark plug:
ND PK20TR11
NGK BKR6EKPB±11
(b) No large carbon deposit present.
Not wet with gasoline or oil.
(c) Electrode gap:
Standerd: 1.0 ± 1.1 mm (0.03937 ± 0.043 in.).
Maximum: 1.3 mm (0.051 in.).
PREPARATION:
(a) Install the spark plug to the ignition coil, and connect the
ignition coil the connector.
(b) Disconnect injector connector.
(c) Hold the end about 12.5 mm (0.5 in.) from the ground.
CHECK:
Check if spark occurs while engine is being cranked.
NOTICE:
To prevent excess fuel being injected from the
injectors during this test, don't crank the engine for more
than 5 ~ 10 sec. at a time.
OK:
Spark jumps across electrode gap.
NG Replace or check ignition system
(See page IG±1).
OK

EM±2
± ENGINE MECHANICAL (1MZ±FE)CO/HC
1288 Author: Date:
If the CO/HC concentration dose not comply with regulations,
troubleshoot in the order given below.
See the table below for possible causes, then inspect and cor-
rect the applicable causes if necessary.
COHCProblemsCauses
NormalHighRough idle1. Faulty ignitions:

Incorrect timin
g
Incorrect timing

Fouled, shorted or improperly gapped plugs

Open or crossed hi
gh±tension cords
Oen or crossed high±tension cords
2. Incorrect valve clearance
3 Leaky EGR valve
3 Leaky EGR valve
4.Leaky intake and exhaust valves
5.Leaky cylinder
LowHighRough idle1. Vacuum leaks:LowHighRough idle
(
Filtrating HC reading)
1. Vacuum leaks:

PCV hose(Filtrating HC reading)
PCV hose

EGR valve
EGR valve

Intake manifold
Intake manifold

Air intake chamber
Air intake chamber

Throttle bodyThrottle body

IAC valveIAC valve

Brake booster lineBrake booster line
2. Lean mixture causing misfire
HighHighRough idle
(Black smoke from exhaust)1. Restricted air filter
2. Faulty SFI system

Faulty pressure regulator

Defective ECT sensor

Faulty ECM

Faulty injectors

Faulty throttle position sensor

Faulty MAF meter

S04790
Chamber Stay
Engine
HangerEGR
Pipe
S04791
8 mm Hexagon
Wrench
A01807
(b)
(c)
A01808
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±33
1319 Author: Date:
(t) Disconnect the engine wire clamp from the emission con-
trol valve set.
(u) Remove the 2 bolts and No.1 engine hanger.
(v) Remove the 2 bolts and air intake chamber stay.
(w) Remove the 4 nuts, No.2 EGR pipe and 2 gaskets.
(x) Using an 8 mm hexagon wrench, remove the 2 bolts, 2
nuts, the air intake chamber assembly and gasket.
9. REMOVE INTAKE MANIFOLD ASSEMBLY
(a) Disconnect the 6 injector connectors.
(b) Disconnect the fuel inlet hose from the fuel filter.
CAUTION:
Perform connecting operations of the fuel tube connector
(quick type) after observing the precautions.
(See page SF±1)
(c) Disconnect the heater hose from the intake manifold.
(d) Remove the 9 bolts, 2 nuts, 2 plate washers, the intake
manifold, delivery pipes and injectors assembly.
NOTICE:

Be careful not to drop the injectors when removing
the delivery pipes.

Pay attention to put any hung load on the injector to
and from the side direction.

A05194
L = 133 mm (5.24 in.)
L = 180 mm (7.09 in.)L = 72 mm (2.83 in.)
L = 335 mm (13.19 in.)L = 180 mm
(7.09 in.)
L = Length Join
LineJoin
Line
Z14262New Gasket
A01808
8
6
5
4
3
2
1
9
10
7
11
EM±66
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1352 Author: Date:

Remove the backing paper from a new gasket and
install the gasket evenly to the part of the timing belt
cover shaded black in the illustration.
NOTICE:
When joining 2 gaskets, do not leave a gap between them.
Cut off any excess gasket.

After installing the gasket, press down on it so that
the adhesive firmly sticks to the timing belt cover.
(b) Install the timing belt cover with the 6 bolts.
Torque: 8.5 N´m (85 kgf´cm, 74 in.´lbf)
(c) Install the 3 engine wire clamps to the timing belt cover.
20. INSTALL NO.2 IDLER PULLEY (See page EM±21)
21. INSTALL CAMSHAFT TIMING PULLEYS
(See page EM±21)
22. INSTALL TIMING BELT (See page EM±21)
23. INSTALL SPARK PLUGS
24. INSTALL IGNITION COILS
25. INSTALL PS PUMP DRIVE BELT
26. INSTALL GENERATOR DRIVE BELT
(See page SR±28)
27. INSTALL WATER OUTLET
(a) Install 2 new gaskets.
(b) Connect the water outlet to the bypass hose.
(c) Install the water outlet with the 2 bolts, 2 nuts and 2 plate
washers. Alternately tighten the bolts and nuts.
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)
NOTICE:
Do not scratch the seal surface of the water outlet with the
stud bolt.
(d) Connect the ECT sender gauge connector.
(e) Connect the ECT sensor connector.
(f) Connect the ground strap (connector).
(g) Connect the radiator hose.
(h) Connect the engine coolant reservoir hose.
28. INSTALL INTAKE MANIFOLD ASSEMBLY
(a) Install the intake manifold, delivery pipe and injectors as-
sembly with the 9 bolts, 2 plate washers and 2 nuts. Uni-
formly tighten the bolts and nuts, in several passes, in the
sequence shown.
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)

IG0DF±01
CHECK POWER SUPPLY OF HIGH±TENSION COIL AND IGNITER
SPARK TEST
CHECK RESISTANCE OF HIGH±TENSION CORD
Maximum resistance: 25 kW per cord
CHECK RESISTANCE OF IGNITION COIL 1. Turn ignition switch to ON.
2. Check that there is battery voltage at ignition
coil positive (+) terminal. CHECK CONNECTION OF IGNITION COIL AND IGNITER
Resistance:
Cold Hot
Secondary
10.8 ± 14.9 kW13.1 ± 17.5 kWReplace the ignition coil (s). Connect securely.
Replace the cord(s).
Check wiring between ignition switch to
ignition coil and igniter.
NO
OK OK
OKBAD
BAD
BAD
BAD
CONNECTORS
Primary
0.70 ± 0.94 W0.85 ± 1.10 W AISAN made:
Secondary
6.8 ± 11.7 kW8.6 ± 13.7 kW Primary
0.70 ± 0.94 W0.85 ± 1.10 W Diamond made:
OK
Continue to the next page
± IGNITION (1MZ±FE)IGNITION SYSTEM
IG±1
1695 Author: Date:
IGNITION SYSTEM
ON±VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in these sentences express the tempera-
ture of the coils themselves. ºColdº is from ±10°C (14°F) to
50°C (122°F) and ºHotº is from 50°C (122°F) to 100°C
(212°F).
1. INSPECT IGNITER AND SPARK TEST
Check that the spark occurs.
(1) Remove the ignition coil.
(2) Remove the spark plug.
(3) Install the spark plug to the ignition coil, and connect
the ignition coil connector.
(4) Ground the spark plug.
(5) Check if spark occurs while engine is being
cranked.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, do not crank the engine for more 5 ± 10 se-
conds at a time.
If the spark does not occur, do the test as follows:

S05054
New Gasket
FI1654
Fulcrum Length
30 cm
SST
FI6372 FI6372
New O±Ring
Grommet
InjectorCORRECT
WRONG
± SFI (1MZ±FE)SFI SYSTEM
SF±3
1502 Author: Date:
(b) When connecting the union bolt on the high pressure pipe
union, observe these procedures:
(1) Always use 2 new gaskets.
(2) Tighten the union bolt by hand.
(3) Tighten the union bolt to the specified torque.
Torque: 32.5 N´m (330 kgf´cm, 24 ft´lbf)
(c) When connecting the flare nut on the high pressure pipe
union, observe these procedures:
(1) Apply a light coat of engine oil to the flare nut, and
tighten the flare nut by hand.
(2) Using SST, tighten the flare nut to specified torque.
SST 09631±22020
NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.
Torque: 28 N´m (285 kgf´cm, 21 ft´lbf) for using SST
HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
(d) Observe these precautions when removing and installing
the injectors.
(1) Never reuse the O±ring.
(2) When placing a new O±ring on the injector, take
care not to damage it in any way.
(3) Coat a new O±ring with spindle oil or gasoline be-
fore installing±never use engine, gear or brake oil.

S06086
Fuel Hose
Clamp
S05352
S05364
SST
SST
Retainer
No.1 Fuel
Fuel Tube
Connector (Hose)
Pipe
SST
(Hose)SST
± SFI (1MZ±FE)FUEL PUMP
SF±7
1506 Author: Date:
(d) Remove the fuel hose clamp.
(e) Disconnect the No.1 fuel pipe (fuel tube connector) from
the fuel filter outlet.
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions. (See page SF±1)

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.
(f) Install SST (pressure gauge) as shown in the illustration
by using SST and fuel tube connector.
SST 09268±41047, 09268±41250, 09268±45012
(g) Wipe off any splattered gasoline.
(h) Reconnect the negative (±) terminal cable to the battery.
(i) Connect the TOYOTA hand held tester to the DLC3.
(See step 1. check fuel pump operation (a) to (e))
(j) Measure the fuel pressure.
Fuel pressure:
301 ± 347 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check these parts:
Fuel hoses and connections
Fuel pump
Fuel filter
Fuel pressure regulator
(k) Disconnect the TOYOTA hand±held tester from the
DLC3.
(l) Start the engine.
(m) Measure the fuel pressure at idle.
Fuel pressure:
301 ± 347 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
(n) Stop the engine.
(o) Check that the fuel pressure remains as specified for 5
minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.