ABS TOYOTA CELICA 1987 Service Repair Manual

INTRODUCTION - General Repair Instructions
IN-S
(b) Recoating of Precoated Parts
(1) Clean off the old adhesive from the part’s
threads.
(2) Dry with compressed air.
(3) Apply the specified seal lock adhesive to the
part’s threads.
(c) Precoated parts are indicated in the component
illustrations by the “*” symbol.
7. When necessary, use a sealer or gaskets to prevent leaks.
8. Carefully observe all specifications for bolt torques.
Always use a torque wrench.
9. Use of special service tools (SST) and special service
materials (SSM) may be required, depending on the nature
of the repair. Be sure to use SST and SSM where specified
and follow the proper work procedure. A list of SST and
SSM can be found at the back of this manual.
10. When replacing fuses, be sure the new fuse is the correct
amperage. DO NOT exceed the fuse amp rating or use one
of a lower rating.
11. Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the
proper locations.
(a) If the vehicle is to be jacked up only at the front or
rear end, be sure to block the wheels in order to
ensure safety.
(b) After the vehicle is jacked up, be sure to support it on
stands. It is extremely dangerous to do any work on
the vehicle raised on a jack alone, even for a small job
that can be finished quickly.
WRONG
CORRECT 12. Observe the following precautions to avoid damaging the
parts:
(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,
the IC may be destroyed by static electricity.)
(b) Be careful not to drop electrical components, such as
sensors or relays. If they are dropped on a hard floor,
they should be replaced and not reused.
(c) When disconnecting vacuum hoses, pull on the end
of the hose, not the middle.
(d) When separating electrical connectors, pull on the
connector itself, not the wires.

-8 EFI SYSTEM -.- Inspection Precautions
IF VEHICLE IS EQUIPPED WITH MOBILE
RADIO SYSTEM (HAM, CB, ETC)
The ECU has been designed so that it will not be affected by
outside interference.
However, if your vehicle is equipped with a CB radio
transceiver, etc. (even one with about 10 W output), it may, at
times, have an affect upon ECU operation, especially if the
antenna and feeder are installed nearby.
Therefore, observe the following precautions:
1. Install the antenna as far as possible from the ECU. The
ECU is located behind the glove box (MA) or passenger’s
kick panel (MS), so the antenna should be installed in the
rear of the vehicle.
2. Keep the antenna feeder as far .away as possible from the
ECU wires at least 20 cm (7.87 in.), and especially, do not
wind them together.
3. Insure that the feeder and antenna are properly adjusted.
4. Do not equip your vehicle with a powerful mobile radio
system.
Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched, the
. . .
IC may be destroyed by static electricity.1
AIR INDUCTION SYSTEM
1.
2. Separation the engine oil dipstick, oil filler cap, PCV hose,
etc., may cause the engine to run out of tune.
Disconnection, looseness or cracks in the parts of the air
induction system between the air flow meter and cylinder
head will allow air suction and cause the engine to run out
of tune.
TM-GE (MS)
7M-GTE

ENGINE MECHANICAL! Y) Engine Tune-up
Qy r\:y 9,.
, ,. . .,
1. 1. ., I ,,.,q,, ./. . . .
. . . . . . . J>
,; ..1’- -INSPECTION AND ADJUSTMENT OFIDLE
I
$‘,’ ,, :.. ,:
MIXTURE (w/o TWC)
2,
.: .,;.
4.
5. tNSPECT AND ADJUST IDLE CO CONCENTRATION
120 Seconds Tachometer
$0
H v
EC016
,
A. INITIAL CONDITIONS
(a) Ajr cleaner Jnstalled
(b) Normal engine operating temberature
(cf All pipes and hoses of air intake system connected
(d) All accessories switched off
‘6) All vacuum lines properly connected
(f) EFI system~‘w&g connectors fully plugged
c(g) I.gnitio$ timing set correctly
(h) Transmission. i.n,.N range
CONNECT TACHCBMETER TO ENGINE
(See page EM-171
CHECK IDLE SPEED
Idle speed: 800 rpm
CAUTION:
a Always use a CO meter,.,when adjusting the idle mix-
ture. It is not necessary to adjust with the idle mix-
ture adjusting screw in. most vehicles if they are in
good condition. If a CO meter is not available, DO
NOT ATTEMPT TO ADJUST WITH THE SCREW.
l If a CO meter is not available and it is absolutely
necessary to adjust with the idle mixture adjusting
screw, or if the air flow meter is replaced, use the
alternative method.
~, r’.
’ _‘i..
METHOD WITH CO METER
(a) Check that the CO meter is properly calibrated.
(b) Race the engine for approx. 120 seconds at appr 1,
2,500 rpm before measuring the concentration. r
‘-..*
(c) Wait 1 - 3 minutes after racing the engine to allow
the concentration to stabilize.
(df Insert a testing probe at least 40 cm (1.3 ft) into the
tailpipe, and measure the concentration with a short
time.
Idle CO concentration: 1.0 -t- 0.5 %

ture adjusting screw.
6. ALTERNATIVE METHOD
NOTE:
l This method is to be used ONLY when it is absolutely
necessary to adjust the idle mixture screw or if the air
flow meter is replaced without the aid of a CO meter..
0 Thefnscribed number shows the depth of the idle mix-
ture screw positioned for presetting. ,, ,, ‘-
Example: Inscribed number depth c ”
83 - 8.3 mm (0.326
in.)
Depths over 10 mm with a decimal point are abbreviated, i.:
Example: Inscribed number depth
15 - 11.6 mm (0.463 in.)
(a) Remove the rubber plug from the air flow meter.
(b) Measure the depth of the idle mixtura, adjusting
screw with vernier calipers;
(cl Adjust the depth of idle mixture adjusting screw by
turning the screw with SST.
SST 09243-00020
(d) Reinstall the rubber plug into the hole of the idle mix-
ture adjusting screw.