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Home >> Lexus >> 1994 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Difficult to Start >> Cold Engine
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Cold Engine

DIFFICULT TO START; COLD ENGINE

When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still cannot be confirmed in the basic inspection, then proceed to this step and perform troubleshooting according to the numbered order given below.

1. Starter Signal Circuit
2. Idle Air Control Valve Circuit
3. Cold Start Injector Circuit
4. Fuel Pump Control Circuit
5. Injector Circuit
6. Ignition Coil
7. Distributor
8. Spark Plug

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