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    flynclark's Avatar
    flynclark Posts: 3, Reputation: 1
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    #1

    Mar 5, 2012, 02:43 PM
    Civic quit like you turned off the key
    90 civic dx flashing code 20. Cranks but won't start. It quit like you turned off the key. Nice car, it quit three blocks from home. Best guesses anyone?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Mar 5, 2012, 02:59 PM
    20--Electrical load detector

    It may require replacing the under hood fuse/relay box, which is not cheap, or the ECM. A Code 20 is not a good one to have, if it's a legitimate code. These are extremely rare. Does the CEL stay on, when the ignition switch is turned to ON (Position II)?
    flynclark's Avatar
    flynclark Posts: 3, Reputation: 1
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    #3

    Mar 6, 2012, 08:06 AM
    The CEL goes out in just a few seconds. I discovered Yesterday I'm getting no fuel pressure. I pulled the main relay, I will get time later to check that. I thought I heard the fuel pump Yesterday running weakly just once, but I never heard it again. I pulled the bleeder bolt, poked a piece of aquarium tubing in the hole to run the fuel overboard. Turned the key on and got nothing
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #4

    Mar 6, 2012, 08:38 AM
    The CEL will go off after a bulb check with key-on.
    Check for power and ground at the fuel pump.
    Power on the Yel/Blk wire and Ground on the Black one. You should have power there for two seconds after key-on.
    Ground is constant.
    flynclark's Avatar
    flynclark Posts: 3, Reputation: 1
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    #5

    Mar 6, 2012, 01:39 PM
    OK here we go, Yes I have power at the connector under the rear seat. And the ground reads 0 ohms.
    I get 13 volts briefly two seconds, then a steady 11 v.

    I got the car to idle for two or three minutes earlier, after I reinstalled the main relay.( relay checked good)
    After it quit again that's when I checked for power at the fuel pump. Do I need an adapter or something to hook up my fuel pressure gauge? Looks like a shrader (tire) valve on the gauge but I don't see one on the fuel system.
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