Toyota Supra 1990 Manual page 340

IG-6
IGNITION SYSTEM - On-Vehicle Inspection (7M-GE)
IG0596
IG10ll
INSPECTION OF HIGH-TENSION CORDS
1. REMOVE HIGH-TENSION CORDS
(a) Disconnect the throttle body.
• Disconnect the air cleaner hose.
• Remove the throttle body bracket(s).
• Disconnect the accelerator connecting rod.
• Disconnect the PCV hose.
• Remove the four bolts and pick up the throttle body.
(b) Carefully remove the high-tension cords by their rub-
ber boots from the spark plugs.
NOTICE: Pulling on or bending the cords may damage the
conductor inside.
2. INSPECT HIGH-TENSION CORD RESISTANCE
Using an ohmmeter, measure the resistance without dis-
connecting the cap.
Maximum resistance: 25 kO per cord
If resistance exceeds maximum, check the terminals.
If necessary, replace the high-tension cord and/or distri-
butor cap.
3. INSTALL HIGH-TENSION CORDS
(a) Install high-tension cords.
(b) Install the throttle body.
• Install the throttle body with the four bolts.
• Connect the PCV hose.
• Connect the accelerator connecting rod.
• Install the throttle body bracket(s).
• Connect the air cleaner hose.