sensor TOYOTA CELICA 1987 Service Manual PDF

IGNITION SYSTEM - On-Vehicle Inspection (7M-GTE)
NE Pickup Gl Pickup G2 Pickup
.’ INSPECTION dF -CAM .POSITION SENSOR
1. INSPECT AIR GAP
Using a thickness gauge, measure the gap between the ?
signal rotor and pickup coil projection.
Air gap: 0.2 - 0.4 mm (0.008 - 0.016 in.)
If the gap is not within specification, replace the cam posi-
tion sensor.
2. INSPECT PICKUP COILS
Using an ohmmeter, check resistance of the pickup coil.
Gl pickup coil resistance:
Gl -GQ 140-180n
62 pickup coil resistance:
G2-GO 140-180n
NE pickup coil resistance:
NE-GO 140-180n
If the resistance is not as specified, replace the cam posi-
tion sensor.

CAM POSiTION SENSOR-(7
COMPONENTS
* Non-reusable part
3
9 3
Dust Proof Cover Packing + Pin
Position Sensor Housing + Gear
-
~~-
REMOVAL OF CAM POSITION SENSOR
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL
Oi- BATTERY
2.
DISCONNECT CAM POSITION SENSOR CONNECTOR
3.
SET NO.1 CYLINDER TO TDWCOMPRESSION
(a) Remove the oil filler cap.
(b) Look through oil filler hole and turn the crankshaft
clockwise until the cam nose can be seen. :I
it

IQ-24 IGNITION SYSTEM - Cam Position Sensor (7M-GTE)
(cl y2;dthe crankshaft counterclockwise arjproximately
(d) Turn the crankshaft again approximtiteli 10” to 40”
clockwise so that the timing belt cove; TDC mark and
the crankshaft pulley TDC mark are aligned.
.
4. REMOVE NO.4 AIR CLEANER PIPE WITH NO.1 PND
NO.2 AIR CLEANER HOSES
5.
REMOVE NO.7 AIR CLEANER HOSE WITH AIR FLOW
METER AND AIR CLEANER CAP
(a) Disconnect the three air hoses and PCV hose.
(b) Disconnect the air flow meter connector.
(c) Disconnect the PS idle up air hose.
(d) Loosen the clamps and remove the bolt.
(e) Remove the No.2 air cleaner hose with air flow meter
and air cleaner cap.
6.
REMOVE PS RESERVOIR TANK
Remove the two bolts, nut and reservoir tank with bracket.

IGNITION SYiTEM - Cam Position Sensor (‘IM-GTE)
IG-26.
-_
Groove
/ Matchmark
Drilled Mark
IGO
lGO67i
7. REMOVE CAM POSITION SENSOR
(a) Remove the hold-down bolt.
lb) Pull out the cam position sensor from the cylinder
head.
8. REMOVE O-RING
REPLACEMENT OF CAM POSITION SENSOR
DRIVEN GEAR
1.
GRIND DRIVEN GEAR AND PIN
(a) Align the drilled mark on
the driven gear with the
groove of the housing.
lb) Place a matchmark on the cam position shaft that
aligns with the groove of the housing.
(cl Using a grinding wheel, grind the gear and pin.
CAUTION: Be careful not to damage the shaft.
2.
REMOVE PIN AND DRIVEN GEAR
(a) Using a punch and hammer, drive out the pin.
(b) Remove the driven gear and discard it.
3. INSTALL NEW DRIVEN GEAR AND PIN
(a) Align the matchmark with the groove of the housing.
(b) Align the drilled mark on the new driven gear with the
groove of
the housing.

IG-26 IGNITION SYbTEM - Cam Position Sensor (7M-GTE)
li ‘Jr. .
> ,I_ 1 .I..: .‘ ,,,. 2,,,“--.
(4 Using a‘ punch and hammei, *peen both ends of the
pin.
I- Groove
INSTALLATION OF CAM POSITION.SENSOR
1. CHECK NO.1 CYLINDER TO TDCXOMPRESSION
2. INSTALL CAM POSITION SENSOR
(a) Install a new O-ring to the cam position sensor.
NOTE: Always use a new O-ring when installing the cam
position sensor.
(b) Align the drilled mark on the driven gear with the
groove of the housing.
(c) Insert the cam position sensor,aligning the center of
the flange with that of the bolt hole on the cylinder
head.
(d) Lightly tighten the hold-down bolt.
. .
3.
INSTALL PS RESERVOIR TANK
Install the PS reservoir tank with bracket with the two
bolts and nut.
4.
INSTALL NO.7 AIR CLEANER HOSE WITH AIR FLOW
METER AND AIR CLEANER CAP
(a) Install the No.7 air cleaner hose with air flow meter
and air cleaner cap.
(b) Install the bolt and tighten the clamps.

IGNITION SY-$TEM
- Cam Position Sensor (‘/M-GTE)
IO-27
(cl Connect the PS idle up air hose.
(d) Connect the air flow meter connector.
(e) Connect the PCV hose and three air hoses.
5. INSTALL NO.4 AIR CLEANER PIPE WITH NO.1 AND
NO.2 AIR CLEANER HOSES
6. CONNECT CAM POSITION SENSOR CONNECTOR
7.
WARM UP ENGINE
Allow the engine to reach normal operating temperature.
8. ADJUST IGNITION TIMING (See page EM-171

x-2 TURBOCHARGER SYSTEM - Description
.
DESCRIPTION
-.
“
Oxygen
. Turbine Wheel
Sensor
.
I Full-floating Bearing
Valve
Oil P&sage
From Oil Inlet Pipe
Intercooler Pipe Arrangement
TdO
CSOll5 Fl2
The turbocharger is a device which increases
engine output by sending a greater amount of air-
fuel mixture to the engine than under normal con-
ditions. Engine output depends upon the amount
of the air-fuel mixture ignited per unit of time.
Therefore, to increase engine output, the most
effective method is to send a greater amount of
air-fuel mixture into the cylinder. than usual, engine output can be increased by
.
increasing the average combustion pressure with-
out increasing the engine speed.
Superchargers are either turbocharger type
(using exhaust gas to turn the turbine) or
supercharger type (using the engine crankshaft,
etc. to mechanically turn the pump, etc.). For the
Supra 7M-GTE engine, the turbocharger type has
been adopted.
In other words, by installing a special tur-
bocharger and providing more air-fuel mixture

m-1 0 TURBOCHARGER SYSTEM .- Turbocharaer
. .
REMOVAL OF TURBOCHARGER
(See page TC-91..
1.
DISCONNECT CABLE FROM NEGATIVE TERMINAL
OF BATTERY
2. DRAIN COOLANT
1 3.
REMOVE NO.4 AIR CLEANER PIPE WITH NO.1 AND
NO.2 AIR CLEANER HOSES
4. REMOVE NO.7 AIR CLEANER HOSE WITH AIR
FLOW METER AND AIR CLEANER CAP
(a) Disconnect the three air hoses and PCV hose.
(b) Disconnect the air flow meter connector.
(cl Disconnect the PS idle up air hose.
I (d) Loosen the clamps and remove the bolt.
1 EM3528
5. (e) Remove the No.7 air cleaner hose with air flow mete#
and air cleaner cap. i.,%$
: ,::j
REMOVE TURBO HEAT INSULATOR
(a) Disconnect the oxygen sensor connector.
(b) Remove the three nuts, plate washer and turbo h’
insulator.

8 SYS
NTEM - - Turbocharger
(cl Install
the front exhaust pipe
clamp. TC-17
10. Ih$TA& NO.1 AIR CLEANER PIPE WITH NO.6 AIR
.-GLEANER HOSE I
.
(a)
Install the No.1 air cleaner pipe with No.6 air cleaner
hose to the No.5 air cleaner hose and turbocharger.
(b) Connect the No.1 air cleaner pipe to bracket with the
bolt.
Torque:
130 kg-cm (9 ft-lb, 13 N-m)
(c) Tighten the No.5 and No.6 air hose clamps.
11 i INSTALL “OIL DIPSTICK GUIDE
‘(a) ‘.‘lnstall a new O-ring to the oil dipstick guide.
lb) ,-insert the oil dipstick guide to the No.2 oil dipstick
: ‘/
guide.
(c) Connect the oil dipstick guide to the turbocharger
with the bolt.
(d) Install the oil dipstick.
12. INSTALL TURBO HEAT INSULATOR
(a) Install the turbo heat insulator and plate washer with
the three nuts.
(b) Connect oxygen sensor connector.
13. INSTALL NO.7 AIR CLEANER HOSE WITH AIR
FLOW METER AND AIR CLEANER CAP
(a) Install the No.7 air cleaner hose with air flow meter
and air cleaner cap.
(b) Install the bolt and tighten the clamps.