If your fuel injected import vehicle fails to start or the tachometer reads erratically, you will need an MSD Tach Adapter PN 8910. If the PN 8910 is installed and you have spark but the vehicle will still not run, you will need a special Tach Adapter. Contact MSD Tech for the correct Adapter.
In some instances, after installing an MSD Ignition control unit on an import vehicle may result in a no-start situation or a erratic tach. Depending on which MSD Ignition was installed on the vehicle a tach adapter will be required to remedy the situation.
Installation to an MSD DIS-4 using Three Channels
Installation to an MSD DIS-4 Ignition using Four Channels
Wiring the Tach Adapter PN 8910 EIS