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  • rickmn 06/13/12 8:04 pm PST

    When a fuel injected engine will only start with the pedal depressed, that's a dead giveaway for a bad engine coolant temp sensor. The sensor tells the computer that the engine is cold (on a cold start), so the computer commands a rich air/fuel mixture. But if the sensor is bad, the computer thinks the engine is warmer than it really is and gives it a lean mixture. A cold engine will start because you've goosed the gas pedal but will then die because the mixture is too lean. You can test the sensor, or, because they're cheap (less than $25) you can just replace it.

  • rickmn 06/13/12 8:05 pm PST

    When a fuel injected engine will only start with the pedal depressed, that's a dead giveaway for a bad engine coolant temp sensor. The sensor tells the computer that the engine is cold (on a cold start), so the computer commands a rich air/fuel mixture. But if the sensor is bad, the computer thinks the engine is warmer than it really is and gives it a lean mixture. A cold engine will start because you've goosed the gas pedal but will then die because the mixture is too lean. You can test the sensor, or, because they're cheap (less than $25) you can just replace it. See the post below on how to test a coolant temp sensor

    Source: http://www.ricksfreeautorepairadvice.co
    m...

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