hello everyone im new at this
my nissan bluebird has a twin coil setup :( which is very differant

my car has no tacho so i went to the shop and baught a digital one

it has a green wire which sais to put onto the negetive on the coil but mine has 2 and better yet it i dont know which wire i can tap into any ideas

does it matter what coil i use? is there an easier place to put this tacho data wire?

Both of the coils work untill 4000 rpm, then one shuts off. Try one and if the tacho drops to 0 after it goes past 4000, then change coils :)

hey man do u know what wires? lol i dont want to start cutting into random wires lol cheers

Hi Fraz,
you say that both coils work till 4000rpm, then one shuts off, is this on all twil coil models? I have a 89 Attesa Bluebird, and at 2800rpm the engine cuts out like a rev limiter. I thought maby the engine had a crook coil (the one that goes past 4000rpm). So each time the engine speed reaches this it cuts out......what do you think ?
Also what is the purpose of twin coils ?

Cheers

hey found its the blue and yellow wire after 1 small shock

and 1 HUGE shock which made my arm go numb

word to everyone dont fiddle with wires around the coil when the engine is running lol

The 2 coil system is only found on the sohc ca18 and ca20. The sparkplugs on the exhaust side run off the second coil. It is for better emissions.

Is your attessa ca18de or sr20? If its a ca18 then one or more of the coil packs is probably shot. They are under the plastic cover in themiddle of the motor.