MS3Pro EVO Complete 8′ Flying Lead Harness Only (White & Gray connectors with 8′ pigtails) arrives with color-coded, printed wires per the pinout below.
MegaSquirt Wiring Harness - 24 inches long Completely redesigned version adds more features to help make your installation as easy and reliable as possible. We've now brought the improvements from the long harness over to the pigtail harness. This min...Add to cart
If you have a previously installed MS3Pro harness (1st Gen flying lead or LS Drop On Harness) and want to upgrade to MS3Pro EVO or ULTIMATE ECU, the upgrade path is simple. However, complete functionality will require a few basic changes to your 1st Ge...Add to cart
MegaSquirt Wiring Bundle - 23" Long Perfect for creating your harness adapter (perhaps using a DIYBOB along with this) or for tying into your stock wiring harness! 23" TXL wire, color coded with labeling printed on the wire every 3 inches -- no ...Add to cart
Many older tachometers trigger off the negative terminal of the ignition coil. Often, these use a filtering circuit which will not trigger when given a 0 to 12 volt square wave signal, such as the tach output signal from an ECU or ignition box. If you h...Add to cart