What causes difficulty in cold starts but no issues with warm starts?
1 Answers
Possible causes include a faulty coolant temperature sensor, which causes the ECU to use preset values stored in memory, leading to difficulty in cold starts. Solutions: 1. Replace the fuel pump. 2. Adjust the valve clearance. 3. Inspect and replace the coolant temperature sensor if necessary. 4. Replace the relay. Common faults in electronically controlled fuel injection engines include: 1. Failure to start or difficulty starting. 2. Poor idle operation. 3. Abnormal noises in electronically controlled fuel injection engines. 4. Excessive fuel consumption. 5. Excessive lubricant consumption. 6. Abnormal smoke from the exhaust pipe.