quick wiring help please:)

[dnb]

hello all:)

im wiring up a microtech ltx12s atm and i have a problem.

the wiring loom for the microtech has a power and an earth only.

the coil has a positive , negative,and an "e" lol.

my question is do i wire the negative from the ecu to the " - " or the "e"

thanks heaps

see pic

[dnb]

anyone?

[dnb]

cmon guys:)

surely someone here has wired up a computer

[blind_elk]

Rtfm

[loz]

there are no earths in a car only positive and negative so the negative is the go

your car is not earthed in no way does it touch the ground it is insulated by the tyres

from a electricians piont of view which is me

[dnb]

the manual doesnt say blind elk or i wouldnt be asking would i?

[dnb]

thankyou very much loz. much appreciated

[RB30-POWER]

The coil has 3 wires.

One will have +12V when the ignition is on, one will have -12V all the time.

and the third is the ignitor which is wired to the ecu/ignitor, depending on what coils you have. Series 1 coils have an external ignitor pack, while Series 2 have it build in directly in the coil.

Pin1 is the trigger from the ECU/ignitor

Pin2 on the coil is Earth -12V all times

Pin3 is +12V from a switched ignition source.

Hope that helps some.