Tach connection at PCM

What pin number at the Pcm for a 2000 Chevrolet Venture is the tach wire? Supposedly it is a white wire, but there are 4 of them. i'm trying to hook up remote start on wifes van. Haynes manual does not give pin numbers.
Thanks

What pin number at the Pcm for a 2000 Chevrolet Venture is the tach wire? Supposedly it is a white wire, but there are 4 of them. i'm trying to hook up remote start on wifes van. Haynes manual does not give pin numbers.
Thanks
You can goto any of the coils and use purple/white wire. The ignition coil pack is on the top of the engine on the passenger side. The PCM is in the air cleaner assembly on the front of the engine compartment on the driver side, the wire is in the blue plug in pin 8.