need alittle help 94 civic auto no start
07-27-2010, 05:25 PM
#1
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need alittle help 94 civic auto no start
ok so my buddy has a 94 civic 4 door ex (z6) he bought this car cheap someone had swapped the motor but didnt finish it so thats where i come in .. ok got everthing done and car ran good no CEL nothing .. ok so heres where the problem is about 1 out of 5 times it will not start ... when it dont i didnt hear the fuel pump... i changed that still the same thing ... ok then i checked for fire and when it dont start its does still fire ... then i realized i didnt hear the injectors workin or spayin.. so i changed the main relay... and again samething ... so i thought the only thing left is the ignition switch... so i thought.. changed that today and still the same thing .... any ideals ???
Last edited by civicracer94; 07-27-2010 at 05:46 PM.
07-27-2010, 05:45 PM
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07-27-2010, 05:50 PM
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Re: need alittle help 94 civic auto no start
When the fuel pump won't prime and the engine won't start, does the CEL remain on steady with the key in ON(II)? If so, have you tried to pull the CEL code?
07-27-2010, 05:56 PM
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Re: need alittle help 94 civic auto no start
no.. no codes at all .. you can keep turnning the key on and off and after a few mins the pump will come on and it will start .. but like i said it does still fire .. so i ran a hotwire to the pump .. and still wouldnt start ( the injectors wasnt spaying )
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07-28-2010, 06:33 AM
#8
Re: need alittle help 94 civic auto no start
Check whether dash fuse 24 (ACG) is loose.
Check the wire running between the main relay and ECU A23/A24.
Swap in a known good ECU.
Check the wire running between the main relay and ECU A23/A24.
Swap in a known good ECU.
08-17-2010, 04:20 PM
#11
Re: need alittle help 94 civic auto no start
It's get quite expensive replacing parts at random. A good multimeter only costs $10-$25. A lot less than what you have spent already.
08-17-2010, 04:28 PM
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Re: need alittle help 94 civic auto no start
Since u don't hear the fuel pump prime it either one of two things: the fuel pump or MAIN RELAY... since fuel pumps never go bad on Honda's... IT THE MAIN RELAY!!!
08-17-2010, 04:32 PM
#13
Re: need alittle help 94 civic auto no start
08-17-2010, 04:45 PM
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