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.
1993 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Distributor Sensors
DISTRIBUTOR PICK-UP COIL AIR GAP (1)
(ES300, GS300 & SC300)
| Application | In. (mm) | ||
|---|---|---|---|
| ES300 & GS300 | .008-.020 (.20-.50) | ||
| SC300 | .008-.016 (.20-.40) | ||
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DISTRIBUTOR SENSOR RESISTANCE
| Application | Ohms | ||||
|---|---|---|---|---|---|
| ES300 (Pick-Up Coils) | |||||
| Between Terminals G1 & "G" | 125-190 | ||||
| Between Terminals G2 & "G" | 125-190 | ||||
| Between Terminals NE & "G" | 155-240 | ||||
| GS300 (Pick-Up Coils) | |||||
| Cold | |||||
| Between Terminals G1 & "G" | 125-200 | ||||
| Between Terminals G2 & "G" | 125-200 | ||||
| Between Terminals NE & "G" | 155-200 | ||||
| Hot | |||||
| Between Terminals G1 & "G" | 160-235 | ||||
| Between Terminals G2 & "G" | 160-235 | ||||
| Between Terminals NE & "G" | 190-290 | ||||
| SC300 (Pick-Up Coils) | |||||
| Between Terminals G1 & "G" | 125-190 | ||||
| Between Terminals G2 & "G" | 125-190 | ||||
| Between Terminals NE & "G" | 155-240 | ||||
| LS400 (Camshaft Sensors & Crankshaft Sensor) | |||||
| Cold | 835-1400 | ||||
| Hot | 1060-1645 | ||||
| SC400 (Camshaft Sensors & Crankshaft Sensor (1) ) | 835-1350 | ||||
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Factory Service Tools
Use the Manual With the Right Hardware
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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.
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