On-Vehicle Inspection (7M-Gte - Toyota Supra 1990 Manual

IG-10
IGNITION SYSTEM - On-Vehicle Inspection (7M-GTE)
EM3311
EM3560
ON-VEHICLE INSPECTION (7M-GTE)
SPARK TEST
HINT: Perform this test to check that voltage is coming
from the ignition coil to the spark plug.
1. DISCONNECT NO.1 AIR CLEANER HOSE
2. DISCONNECT FOLLOWING CABLES:
(a) Cruise control cable
(b) Accelerator cable
(c)
(AfT)
Throttle cable
3. REMOVE ISC PIPE
(a) Disconnect the six hoses from the ISC pipe.
(b) Remove the two bolts and ISC pipe.
4. REMOVE PCV PIPE WITH HOSES
(a) Remove the oxygen sensor wire from the two clamps.
(b) Disconnect the No.4 PCV hose from the PCV pipe.
(c) Remove the two bolts.
(d) Disconnect the PCV pipe with hoses from the cylinder
head covers and throttle body.
5. REMOVE INTAKE AIR CONNECTOR
(a) Disconnect the air valve hose from the intake air con-
nector.
(b) Loosen the clamp and remove the two bolts.
(c) Remove the intake air connector.