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    poopstar's Avatar
    poopstar Posts: 16, Reputation: 1
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    #1

    Dec 30, 2007, 02:02 PM
    93' civic error code 0, cranks but won't start
    Hi,

    My 93 civic hatch died on me the other day while driving. It pretty much felt like I had run out of gas, even though I had a half tank left. So I got it towed to my house, and performed the little paper clip diagnostic test, and when I did, the check engine light came on and stayed on. When I take the paper clip out, the check engine light comes on for two seconds, the I hear a click and it goes off.

    So it seems like I'm getting error code 0, which means bad ecu.

    What could be the problem. I'm a complete noob so step-by-step instructions please.

    Thanks a lot
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Dec 30, 2007, 02:15 PM
    . Perform the K-Test on the ECM:

    Remove the MAP Sensor connector and turn the ignition switch to ON (not start). 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.

    . If the K-Test indicates the ECM is bad, here's how to replace the ECM:

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

    Buy a remanufactured ECM for around $260, with a lifetime warranty, from O'Reilly Auto Parts. On E-Bay they go for around $120. Honda wants around $1,000, with a 1-year warranty.
    poopstar's Avatar
    poopstar Posts: 16, Reputation: 1
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    #3

    Dec 30, 2007, 03:07 PM
    Where do I locate the map sensor?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    Dec 30, 2007, 03:15 PM
    Normally, it's to the right of the fuel filter, along the firewall.
    poopstar's Avatar
    poopstar Posts: 16, Reputation: 1
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    #5

    Jan 2, 2008, 08:31 PM
    Is it on the passenger side, or driver?
    I don't know where the fuel filter is.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #6

    Jan 3, 2008, 06:06 AM
    Passenger side, just to the right of the battery. Look for the long wire and connector going to the MAP Sensor. The MAP Sensor, also, has a vacuum hose going into it.
    poopstar's Avatar
    poopstar Posts: 16, Reputation: 1
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    #7

    Jan 3, 2008, 02:55 PM
    K I just tried the k test, and it IS getting 5 v... what could the problem be... any specific fuses I should check?
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    poopstar Posts: 16, Reputation: 1
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    #8

    Jan 3, 2008, 03:04 PM
    Wait... first I want to know if I did it right:
    I found the map snsor, unplugged the connector.. put the multimeter red wire in the right socket (+) of the map sensor, and the black wire from the multimeter to a bolt on my car.
    It read 5 v
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #9

    Jan 3, 2008, 05:40 PM
    You did the K-Test properly and your ECM should be okay.

    . Test all under-dash and under-hood fuses with a test light or multimeter:

    https://www.askmehelpdesk.com/cars-t...tml#post252145

    . Test for spark.

    . Test the Ignition Control Module (ICM) and coil, which is inside the distributor:

    https://www.askmehelpdesk.com/cars-t...tml#post265896

    AutoZone can do this for free.

    . Replace fuel filter:

    https://www.askmehelpdesk.com/cars-t...tml#post224689

    The odds are that the problems resides in the distributor; e.g. a bad ICM or coil. If you plan on keeping the car, I would also replace the rotor, distributor cap, spark plugs, and spark plug wires.
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    #10

    Jan 3, 2008, 07:22 PM
    I just need something to make it run again. And I want to sell it as soon as its functioning again. Any cheap way of doing this. The thing is, I don't think there's an autozone here. I'm in Toronto. Also, the car is not starting and its in my driveway, so to take it to a shop, ill have to get it towed, which costs $$$...
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #11

    Jan 3, 2008, 07:36 PM
    Test the ICM and coil, using the procedures below:

    . ICM (ignitor) Test. Characteristics of a bad igniter are no spark (dead engine) or fluctuating rpm.
    1. Remove distributor cap, rotor, and leak cover.
    2. Disconnect the BLK/YEL, WHT/BLU, YEL/GRN, and BLU wires from the ICM.
    3. Turn the ignition switch ON. Check for voltage between the BLK/YEL wire and body ground. There should be battery voltage. If there is no voltage, check the BLK/YEL wire between the ignition switch and the ICM. If there is voltage, go to step 4.
    4. Turn ignition switch ON. Check for voltage between the WHT/BLU wire and body ground. There should be battery voltage. If there is no battery voltage, check the ignition coil and the WHT/BLU wire between the ignition coil and the ICM. If there is battery voltage, go to step 5.
    5. Check the YEL/GRN wire between the ECM and the ICM.
    6. Check the BLU wire between the tachometer and the ICM.
    7. If all test are normal, replace the ICM.

    . Coil Test.
    1. Remove the two screws to disconnect the BLK/YEL and WHT/BLU wires from terminals A (+) and B (-), respectively.
    2. Measure resistance (ohms) between the terminals. Replace coil if the resistance is not with specifications. Primary Winding Resistance (between A and B terminals) should be 0.6 to 0.8 ohms. Secondary Winding Resistance (between A and secondary winding terminals) should be 12.8 to 19.2 k-ohms.
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    poopstar Posts: 16, Reputation: 1
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    #12

    Jan 4, 2008, 05:47 AM
    Before I check those two things... could the problem be the fuel filter? If so, how do I check this?
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    poopstar Posts: 16, Reputation: 1
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    #13

    Jan 4, 2008, 12:31 PM
    Also... before that... wats an easy way to test for spark?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #14

    Jan 4, 2008, 12:33 PM
    Read Section B in the Sticky.
    poopstar's Avatar
    poopstar Posts: 16, Reputation: 1
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    #15

    Jan 4, 2008, 11:20 PM
    K so when I take out the spark plug boot from the engine, I notice that it has oil on it. Is this normal?
    JDMostwanted's Avatar
    JDMostwanted Posts: 11, Reputation: 1
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    #16

    Jan 6, 2008, 09:37 PM
    Hey poopstar.. I have the same issue with my civic it doesn't start my check engine light keeps coming on and doesn't turn off after 2 seconds car cranks but doesn't turn over... but my question how did you do that paper clip thing with the ecu.. I also need to know how to read the codes I know 0 means bad ecu or something like that but isn't there like a manually somewhere in this forum how to check ecu? Please help thanks
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #17

    Jan 6, 2008, 09:42 PM
    JDMostwanted, perform the K-Test on your ECM.

    K-Test: Remove the MAP Sensor connector and turn the ignition switch to ON (not start). 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.
    poopstar's Avatar
    poopstar Posts: 16, Reputation: 1
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    #18

    Jan 8, 2008, 02:12 PM
    Txgreasemonkey,
    So my no 2 spark plug has oil on it.. not sure abot the others yet.. I ahvent taken them out yet, but am waiting to get the tools to do so. But I've shone a light in there and seen that no2 spark plug is basically drenched I think.
    So do you think this is what the problem is, and are the symptoms I had (car dying while driving, and cranking but not starting) normal for this problem.
    Please give me any advice you can, again step-by-step.
    Thanks a lot you've already helped me so much.

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