Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA1991SUPRA L6-3.0L DOHC TURBO (7M-GTE)REPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSIGNITION SYSTEMSYSTEM SPECIFICATIONS
1991 Toyota Supra L6-3.0L DOHC Turbo (7M-GTE)
System Specifications
1991 Toyota Supra L6-3.0L DOHC Turbo (7M-GTE)SECTION System Specifications
IGNITION TIMING:
Base Ignition Timing 10° BTDC At Idle [1]
Advance Ignition Timing More Than 12° BTDC At Idle [1]
[1] Refer to ADJUSTMENT PROCEDURES
IGNITION COIL RESISTANCE:
Primary Resistance Value .34 - .42 ohms
IGNITION WIRES:
Resistance Value 25k ohms MAX
SIGNAL GENERATOR (PICK-UP COIL) RESISTANCE:
Resistance Value Between Terminals, G1 and G-:
G1 Pickup Coil 185 - 265 ohms
Resistance Value Between Terminals, G2 and G-:
G2 Pickup Coil 185 - 265 ohms
Resistance Value Between Terminals, NE and G-:
NE Pickup Coil 185 - 265 ohms
Base Ignition Timing 10° BTDC At Idle [1]
Advance Ignition Timing More Than 12° BTDC At Idle [1]
[1] Refer to ADJUSTMENT PROCEDURES
IGNITION COIL RESISTANCE:
Primary Resistance Value .34 - .42 ohms
IGNITION WIRES:
Resistance Value 25k ohms MAX
SIGNAL GENERATOR (PICK-UP COIL) RESISTANCE:
Resistance Value Between Terminals, G1 and G-:
G1 Pickup Coil 185 - 265 ohms
Resistance Value Between Terminals, G2 and G-:
G2 Pickup Coil 185 - 265 ohms
Resistance Value Between Terminals, NE and G-:
NE Pickup Coil 185 - 265 ohms
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.