Where Can I Get A Rpm Signal From Inside The Engine Bay?

[kegz]

well i need an RPM signal in VOLTS... from within the engine bay...

the ECU sends out PULSE and i have a tacho that reads VOLTS ONLY...

so ECU PIN-OUT is no good

the engine is a series 1 RB25 someone was telling me that there are wires that come out of the loom that loops over the igniter and back into the loom again "is this wire that i want"

AND what wire is it??

does anyone know what colour the wire is or have a pic to show me??

i need help with this, both taping off of the signel wire at the back of the dash and ECU will give me the wrong signal type...

cheers ash..

[mad082]

it would be the same wire that you hook a timing light up to. at the back of the motor there an ignitor pack (depending on the year of the motor). it is a box about 3"x3" and about 2cm thick. it has a plug going in eash end. coming out of the plug on the passengers side of the car should be a wire that comes out then loops back into the plug. that is the wire you want. it is simply there to use as a check wire for timing lights.

[kegz]

any pics would be nice.. i must be thick in the head