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    badco's Avatar
    badco Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 21, 2009, 01:48 PM
    Honda Del Sol won't start right away
    Hi, I'm a mechanic for over 20 years.
    I have a honda del sol with the 1.5
    I didn't start the car for a couple days and it was raining. Usually the car would start first shot.
    Now, when I tun the key on , it will not start until I listen and hear a relay kick on and the fuel pump run. Once running, it is business as usual, no misfires, hesitation , or stalling. Once I turn it off, I have the same problem starting it.
    I have replaced the main relay, checked the ignition switch, and also put in a complete new distributor.
    Does anyone have any suggestions?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Jun 21, 2009, 02:38 PM

    . Clean the main ECM ground on the thermostat housing.

    . It's possible the ECM is failing, if the Check Engine Light has been staying on during episodes when it doesn't start. Perform the K-Test on the ECM:

    The K-Test: Remove the MAP Sensor connector and turn the ignition switch to ON (Position II). Using a multimeter, check for 5 volts going between the MAP Sensor connector's reference wire (+) and ground. As you look at the connector, this is the socket on the right. Really press the black test lead into a cleaned main ECM ground on the thermostat housing. If the voltage is low, it's probably indicating ECM failure. Most failed ECMs will record a fraction of a volt. To me, the K-Test is simple, elegant, and accurate.

    . Here's how to replace the ECM, should it fail the K-Test:

    https://www.askmehelpdesk.com/cars-t...tml#post235038
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