ignition problems
11-05-03, 05:02 PM
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ignition problems
i have a second gen with no spark. i pulled the cas out and replaced with a distributor. i then wired the distributor to the fc coils using the wire diagram i found on mazspeeds website. i couldnt follow diagram right because i dont have an extra ignitor. i dont know how to wire the fc ignitors. so i sent pos/neg wires to the coils. used the leading pair(i wired them seperate). sent 12v to the coils. i'm getting spark but its inconsistent, like its misfiring. this is kicking my ***. also, whats the black wire hooked to the little round thing on the outside of dist?
11-05-03, 05:30 PM
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if you have a look at the ignitors they have labels for each seperate wire. the leading fires with wastespark, that means every time rotor1 L fires so does rotor2 L and vise versa. so this means the leading ignitor will need the 2 signals from the distributor.
on the coils the +ve terminal gets a +ve from the battery and +ve from the ignitor. the -ve terminal only gets -ve signal from the ignitor. DO NOT hook up ground to this terminal otherwise you will blow the ignitor.
why are you hooking up a distributor to the 2nd gen eng? are you running fuel only management?
i don't know much about distributors, but my guess would be a ground. wait until someone else confirms this, before you hook it up
on the coils the +ve terminal gets a +ve from the battery and +ve from the ignitor. the -ve terminal only gets -ve signal from the ignitor. DO NOT hook up ground to this terminal otherwise you will blow the ignitor.
why are you hooking up a distributor to the 2nd gen eng? are you running fuel only management?
whats the black wire hooked to the little round thing on the outside of dist?
11-05-03, 08:28 PM
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orx705. thanks for the reply. i'll give you a little history. efi has been removed because i had too many problems with it. i replaced with carb. shortly after i did the carb swap i lost everything with my ignition. did resistance checks on coils, cas. found a blown fusable link but cannot find the cause. this car is a daily driver. myself and a friend reley on it to get us to formation in the morning. so i pulled cas and replaced with dist. have heard of others running fc coils in thier 1st gens so i figured it would work for me. i dont follow when you say the leading ignitor will need the two signals from the dist. i hooked the pos (black/white) wire from each ignitor to its corrosponding coil. then i ran a 12v source to coil. i didnt run a ground wire to coils. i figured they grounded through the spark plugs. how does the ignitor get two signals from dist? i'm really confused.
11-05-03, 10:46 PM
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i dont follow when you say the leading ignitor will need the two signals from the dist. i hooked the pos (black/white) wire from each ignitor to its corrosponding coil. then i ran a 12v source to coil. i didnt run a ground wire to coils. i figured they grounded through the spark plugs. how does the ignitor get two signals from dist? i'm really confused.
i don't have much of an idea about dist. what wires come from the distributor?
i have a 88turboII with a e6k but my trailing coils would not fire. does anyone have any advice i'm really down to my last straw
http://www.hitman.hm/installation.htm
http://www.hitman.hm/ignition_guide.htm
11-07-03, 12:57 AM
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thers a pos and a neg from each ignitor. one ignitor for leading, one for trailing.
the distributor should have spark plug leads coming out the top. you should need only 1 coil which connects to distributor (going off a 1st gen 12a dist). and then 4 other leads which go to the plug. your s4/5 ignitors won't work. the 12a rx7 distrbutor should have 2 ignitors attached.
attach the +ve wires from ignitors to +ve side of coil. attach -ve wires from ignitor to -ve side of coil. you will then need to hook ign power (power only while starting and running) to the postive side of coil.
you may be able to use 1 of the trailing coils.
don't blow those ignitor they are expensive
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11-07-03, 05:26 PM
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got it working today. kinda. everything appears in order but instead of a nice spark from the tip of the electrode, i'm getting a little fizzle way down deep inside the plug. any ideas?
11-08-03, 11:46 AM
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i'm starting to think i have more fuel than what the ignition can fire. i'm a good mechanic, but i've always just repaired things back to factory specs. this high performance stuff is new. you ought to see the fog of fuel that comes out of the plugs holes when i pull them and crank the motor!. any ways, you think thats a possibility? whats a good way to make it hotter?
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