It really all depends on how old those wires are. If you take one of the wires off and point the spark plug end of it to a ground you should see a nice bright blue arc. If you dont see that then it is a good possibility they are bad. If you are not getting spark to the plugs then it is gonna be the coil or the wires or the plugs not much other than that cept like a crank sensor or something. But that part is just a magnet so if the coil is getting voltage take and check with your probes ground one and put the other in the number one coil pack if you dont get some real voltage besides battery voltage the I would look at the coil if you get high voltage there (because the coil ramps the voltage of battery power up) then ohm out the cables. They should be a max of 25k ohms if they are greater than that then they are bad that is straight from the TSRM. I have had 3 supras in my life a 84, 86.5, and a my 87 never seen a coil go bad the plugs wires go bad way before they will.
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1987 supra NA 5 speed
1JZGTE swap
Tokico Illumina 2 and Eibach springs
Tokico pillow blocks
Suspension Techniques front and rear sway bar
HKS super dragger cat-back exhaust plus test pipe
Greddy Profec B spec 2 boost controller
HKS type 1 turbo timer
Supra sport solid steel drive shaft
Walboro 255 fuel pump
JZA70 Front end mod
18" Volk Racing AV3 18x8.5 front 18x9.5 rear
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