Tach signal?
 

Hi Guys,

anyone know of an accessible tach signal wire on the 986?

Regards,
Sam

ask jake raby...he has to know. make sure you tell him you have never been a member of PPBB. i can atest to that fact

What about the one on the back of the convertible top relay, Pin 18? I am not sure if it is a discreet or analog signal.
You also might be able to use the one on the back of the radio. Can't remember the pin # but I am 90% sure the wire is blue.

Are you using an inductive pickup (like on a dyno) or are you probing it? You can take the signal from the coil packs or trace it back to the DME and get it there. I don't know the wire colors on a 986 but you can find it at the coil on one of the cylinders.

Pin #18 is a speed signal not a tach signal. It was to keep you from operating the top while moving.

Pin#9 on the OBD port. Violet/Green Wire

The pin # changes depending on which year car you have but the wire color doesn't.

You can also find the Violet/Green wire at the DME as well.

Brilliant - thank you!!!

Sam