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    Burakcan's Avatar
    Burakcan Posts: 1, Reputation: 1
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    #1

    Jan 17, 2009, 06:36 AM
    1991 Honda Civic DX Stopping/starting
    Hello,

    I have 1991 Honda Civic DX 1.5 Hatchback car. It's been giving me headache for two weeks. It starts normally then after driving around 20km (less or more) it stops itself. I leave it couple hours then when I try to start again it starts. It's happened 7 times so far. A mechanic said fuel pump relay (Main relay) problem. I took 2 relay from junkyard and replaced it but the problem is continue. When it stopped I have checked the error its code it was blink(short) pause blink(short) pause blink(short) so on.. The error code list says: Primary oxygen sensor- Defective circuit or unplugged/ Defective sensor . So, I am going to get change oxygen sensor which I have spare. Which part can cause this problem? Oxygen sensor? Ignition coil? Crank sensor? Does any one have an idea about this problem?

    TX.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Jan 17, 2009, 07:52 AM

    Replace the Ignition Control Module (ICM) and coil:

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

    The oxygen sensor lmay need replacing but it's a "side show." After replacing the ICM and coil, reset the ECM and the oxygen sensor code may go away. If not, replace the oxygen sensor and reset the ECM, again.
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