Ask Experts Questions for FREE Help !
Ask
    tianboon's Avatar
    tianboon Posts: 6, Reputation: 1
    New Member
    		  
    #1

    Oct 17, 2009, 05:57 PM
    Honda Civic 91 main relay and Ignition Coil
    I am new and by luck I found this question/answer website, I have a Honda Civic 91, and have similar problems with starting, there is no spark, my first question is how to test the Ignition Coil, there are two terminals +(pos) and -(neg) and the metal body, I measured between the + and - and got 0.5 Ohms, between (+) and the body shell I got in Mega Ohms which I believe it should be in the Kilo Ohms in resistance and similar reading with the (- )side, is the metal body considered as the tower (hi voltage) like in a conventional coil? part of the plastic enclosure burnt, it becomes brittle. I strongly suspect the problem is this ignition coil, so far I replaced the gas tank, fuel pump, Igniter,

    My second question is where exactly is the main relay located? Is it near the fuse panel under the dash?driver side, or behind the wiring harnes?the Haines manual doesn't show about this main relay. I might have missed this posting in this regard.

    I appreciate any comment and advice.
    Tian.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Oct 17, 2009, 06:43 PM

    Bench testing ignitors and coils is virtually useless. It does not simulate the heat that often causes these components to fail. I recommend replacing these critical and problematic components every 120,000 miles or 10 years, whichever comes first.

    The main relay is located just above fuse box. Turning the ignition switch on and off while help you locate it, by hearing and feeling it click.
    tianboon's Avatar
    tianboon Posts: 6, Reputation: 1
    New Member
    		  
    #3

    Oct 17, 2009, 06:51 PM

    Thank you very much, I will replace the ignition coil and find that main relay and test.
    Tian.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

91 Honda Civic: Main relay? [ 16 Answers ]

Hi: I am having problems with my '91 Honda civic DX when I drive for a while, then I stop the engine for 5-10 minutes to do some shopping or whatever... and then try to start again. It doesn't start at all. But if I wait another 5 or 10 minutes and I try again, usually starts. I don't have any...

Trouble shoot ignition coil 98 honda civic [ 2 Answers ]

I have a feeling my ignition system is the problem, my 1998 honda civic won't start. But how do I trouble shoot the ignition coil before I replace it?

How to change a ignition coil on a honda civic 89 model [ 1 Answers ]

How do I change an ignition coil on a hoda civic 1989 model Thanks

Main Relay on a 91 Honda Civic [ 1 Answers ]

I am trying to find the location of the Main Relay on my 91 Honda Civic. Can anyone help

89 Honda Civic Main Relay [ 2 Answers ]

I have read the articles you have on the main relay, but have been unable to find the main relay in my 89 Civic hatchback. I found a relay close to the location where you said it should be but after replacing that relay I still do not have power to the fuel pump and the ecu still reads a code 16....

View more questions Search