1999 TOYOTA CAMRY check engine light

EM2534
Overall Length
EM0255
P12704
P12729
Width
Z03988
45°
1.0 ± 1.4 mm30° EM±46
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1332 Author: Date:
(d) Check the valve overall length.
Standard overall length:
Intake95.45 mm (3.5779 in.)
Exhaust95.40 mm (3.7559 in.)
Minimum overall length:
Intake94.95 mm (3.7382 in.)
Exhaust94.90 mm (3.7362 in.)
If the overall length is less than minimum, replace the valve.
(e) Check the surface of the valve stem tip for wear.
If the valve stem tip is worn, resurface the tip with a grinder or
replace the valve.
NOTICE:
Do not grind off more than minimum.
11. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45° carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
(b) Check the valve seating position.
Apply a light coat of prussian blue (or white lead) to the
valve face. Lightly press the valve against the seat. Do not
rotate valve.
(c) Check the valve face and seat for the following:

If blue appears 360° around the face, the valve is
concentric. If not, replace the valve.

If blue appears 360° around the valve seat, the
guide and face are concentric. If not, resurface the
seat.

Check that the seat contact is in the middle of the
valve face with the following width:
1.0 ± 1.4 mm (0.039 ± 0.055 in.)
If not, correct the valve seats as follows:
(1) If the seating is too high on the valve face, use 30°
and 45° cutters to correct the seat.

Z19062
Intake ExhaustMark
TMC made
ºNOKº
TMMK made
ºFN , INº
Light Brown SurfaceGray Surface
P12668
(4)
(3)
(2)
(1)
P12476
SST
A05246
EM±56
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
1342 Author: Date:
HINT:
The intake valve oil seal is light brown and the exhaust valve oil
seal is gray.
NOTICE:
Pay much attention when assembling the oil seal for intake
and exhaust. Assembling the wrong one may cause a fail-
ure.
(b) Install the valve (1), spring seat (2), valve spring (3) and
spring retainer (4).
(c) Using SST, compress the valve spring and place the 2
keepers around the valve stem.
SST 09202±70020 (09202±00010)
(d) Using a plastic±faced hammer and the valve stem (not in
use) tip wound with vinyl tape, lightly tap the valve stem
tip to assure proper fit.
NOTICE:
Be careful not do damage the valve stem tip.
4. INSTALL VALVE LIFTERS AND SHIMS
(a) Install the valve lifter and shim.
(b) Check that the valve lifter rotates smoothly by hand.

EM0YR±01
P12393
P12736
12 Pointed Head Bolt
Front7246
5318
7246 5318
P25742
Painted Mark
90°
Front90°
± ENGINE MECHANICAL (1MZ±FE)CYLINDER HEAD
EM±57
1343 Author: Date:
INSTALLATION
1. PLACE CYLINDER HEAD ON CYLINDER BLOCK
(a) Place 2 new cylinder head gaskets in position on the cylin-
der block.
NOTICE:
Be careful of the installation direction.
(b) Place the 2 cylinder heads in position on the cylinder head
gaskets.
2. INSTALL 12 POINTED HEAD CYLINDER HEAD BOLTS
HINT:

The cylinder head bolts are tightened in 2 progressive
steps (steps (c) and (e)).

If any bolt is broken or deformed, replace it.
(a) Apply a light coat of engine oil on the threads and under
the heads of the cylinder head bolts.
(b) Install the plate washer to the cylinder head bolt.
(c) Install and uniformly tighten the cylinder head bolts on
each cylinder head, in several passes, in the sequence
shown, then repeat for the other side, as shown.
Torque: 54 N´m (550 kgf´cm, 40 ft´lbf)
If any of the cylinder head bolts does not meet the torque speci-
fication, replace the cylinder head bolt.
(d) Mark the front of the cylinder head bolt head with paint.
(e) Retighten the cylinder head bolts by 90° in the numerical
order shown.
(f) Check that the painted mark is now at a 90° angle to the
front.

P12404
P12405
P12403
P12416
60°C
P12415
EM±92
± ENGINE MECHANICAL (1MZ±FE)CYLINDER BLOCK
1378 Author: Date:
29. CHECK FIT BETWEEN PISTON AND PISTON PIN
Try to move the piston back and forth on the piston pin.
If any movement is felt, replace the piston and pin as a set.
30. REMOVE PISTON RINGS
(a) Using a piston ring expander, remove the 2 compression
rings.
(b) Remove the 2 side rails and oil ring by hand.
HINT:
Arrange the piston rings in the correct order only.
31. DISCONNECT CONNECTING ROD FROM PISTON
(a) Using a small screwdriver, pry out the 2 snap rings.
(b) Gradually heat the piston to approx. 60°C (140°F).
(c) Using a plastic±faced hammer and brass bar, lightly tap
out the piston pin and remove the connecting rod.
HINT:

The piston and pin are a matched set.

Arrange the pistons, pins, rings, connecting rods and
bearings in the correct order.

P12753
10 11
12 13
14
151
162
3
45
6
7
89
P25741
Painted Mark
Front90°
90°
P12586
1
2
34
567
8
± ENGINE MECHANICAL (1MZ±FE)CYLINDER BLOCK
EM±105
1391 Author: Date:
(a) Apply a light coat of engine oil on the threads and under
the main bearing cap bolts.
(b) Install and uniformly tighten the 16 main bearing cap
bolts, in several passes, in the sequence shown.
Torque: 22 N´m (225 kgf´cm, 16 ft´lbf)
If any of the main bearing cap bolts does not meet the torque
specification, replace the main bearing cap bolt.
(c) Mark the front of the main bearing cap bolts with paint.
(d) Retighten the main bearing cap bolts by 90° in the numer-
ical order shown.
(e) Check that the painted mark is now at a 90° angle to the
front.
9. INSTALL HEXAGON HEAD MAIN BEARING CAP
BOLTS
(a) Install a new seal washer to the main bearing cap bolt.
(b) Install and uniformly tighten the 8 main bearing cap bolts,
in several passes, in the sequence shown.
Torque: 27 N´m (275 kgf´cm, 20 ft´lbf)
(c) Check that the crankshaft turns smoothly.
10. CHECK CRANKSHAFT THRUST CLEARANCE
(See page EM±83)

P12697
P25743
Painted Mark
Front90°
90°
P12911
Seal Width
2 ± 3 mm A
BA
B
± ENGINE MECHANICAL (1MZ±FE)CYLINDER BLOCK
EM±107
1393 Author: Date:
(a) Apply a light coat of engine oil on the threads and under
the heads of the connecting rod cap bolts.
(b) Install and alternately tighten the 2 connecting rod cap
bolts in several passes.
Torque: 24.5 N´m (250 kgf´cm, 18 ft´lbf)
If any of the connecting rod cap bolts does not meet the torque
specification, replace the connecting rod cap bolts.
(c) Mark the front of the connecting cap bolts with paint.
(d) Retighten the cap bolts by 90° as shown.
(e) Check that the painted mark is now at a 90° angle to the
front.
(f) Check that the crankshaft turns smoothly.
14. CHECK CONNECTING ROD THRUST
CLEARANCE (See page EM±83)
15. INSTALL REAR OIL SEAL RETAINER
(a) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the oil seal
retainer and cylinder block.

Using a razor blade and gasket scraper, remove all
the oil packing (FIPG) material from the gasket sur-
faces and sealing grooves.

Thoroughly clean all components to remove all the
loose material.

Using a non±residue solvent, clean both sealing
surfaces.
(b) Apply seal packing to the oil seal retainer as shown in the
illustration.
Seal packing: Part No. 08826±00080 or equivalent

Install a nozzle that has been cut to a 2 ± 3 mm (0.08
± 0.12 in.) opening.

Parts must be assembled within 3 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

Immediately remove nozzle from the tube and rein-
stall cap.
(c) Install the oil seal retainer with the 6 bolts Uniformly tight-
en the bolt in several passes, in the sequence shown.
Torque: 8 N´m (80 kgf´cm, 69 in.´lbf)
16. INSTALL EGR COOLER
Install a new gasket and the EGR cooler with the 3 bolts and 2
nuts.
Torque: 9 N´m (90 kgf´cm, 78 in.´lbf)

P24458HolderGrommet
S00813
CORRECT WRONG
Clearance
IG0147
Megger
Ground
S03776
IG±4
± IGNITION (1MZ±FE)IGNITION SYSTEM
1698 Author: Date:
(g) Connect the high±tension cords to the ignition coils.
(1) Assemble the holder and grommet.
(2) Align the spline of the ignition coil with the spline of
the holder, and push in the cord.
NOTICE:
Check that the holder is correctly installed to the grommet
and ignition coil as shown in the illustration.
(3) Check that the lock claw of the holder is engaged by
lightly pulling the holder.
(h) Connect the high±tension cords to the spark plugs.
(i) Install the V±bank cover.
3. INSPECT SPARK PLUGS
NOTICE:

Never use a wire brush for cleaning.

Never attempt to adjust the electrode gap on a used
spark plug.

Spark plugs should be replaced every 100,000 km
(60,000 miles).
(a) Remove the high±tension cords set. (See step 2)
(b) Remove the ignition coils.
(c) Inspect the electrode.
Using a megger (insulation resistance meter), measure
the insulation resistance.
Standard correct insulation resistance:
10 MW or more
If the resistance is less than specified, proceed to step (e).
HINT:
If a megger is not available, the following simple method of in-
spection provides fairly accurate results.
(d) Simple Method:
(1) Quickly race the engine to 4,000 rpm 5 times.
(2) Remove the spark plug. (See step (e))
(3) Visually check the spark plug.
If the electrode is dry ... OK
If the electrode is wet ... Proceed to step (f)
(4) Install the spark plug. (See step (i))

V07268
VIBRATION METHOD: When vibration seems to be the major cause.
CONNECTORS
WIRE HARNESS
PARTS AND SENSOR1
Slightly shake the connector vertically and horizontally.
Slightly shake the wire harness vertically and horizontally.
The connector joint, fulcrum of the vibration, and body
through portion are the major areas to be checked thorough-
ly.
Apply slight vibration with a finger to the part of the sensor
considered to be the problem cause and check that the mal-
function occurs.Shake Slightly
Swing Slightly
Vibrate Slightly
HINT:
Applying strong vibration to relays may result in open relays.
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN±25
25 Author: Date:
3. SYMPTOM SIMULATION
The most difficult case in troubleshooting is when there are no problem symptoms occurring. In such cases,
a thorough customer problem analysis must be carried out, then simulate the same or similar conditions and
environment in which the problem occurred in the customer's vehicle. No matter how much experience a
technician has, or how skilled he may be, if he proceeds to troubleshoot without confirming the problem
symptoms he will tend to overlook something important in the repair operation and make a wrong guess
somewhere, which will only lead to a standstill. For example, for a problem which only occurs when the en-
gine is cold, or for a problem which occurs due to vibration caused by the road during driving, etc., the prob-
lem can never be determined so long as the symptoms are confirmed with the engine hot condition or the
vehicle at a standstill. Since vibration, heat or water penetration (moisture) is likely cause for problem which
is difficult to reproduce, the symptom simulation tests introduced here are effective measures in that the ex-
ternal causes are applied to the vehicle in a stopped condition.
Important Points in the Symptom Simulation Test:
In the symptom simulation test, the problem symptoms should of course be confirmed, but the problem area
or parts must also be found out. To do this, narrow down the possible problem circuits according to the symp-
toms before starting this test and connect a tester beforehand. After that, carry out the symptom simulation
test, judging whether the circuit being tested is defective or normal and also confirming the problem symp-
toms at the same time. Refer to the problem symptoms table for each system to narrow down the possible
causes of the symptom.