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What causes a MSD 6A ignition control to fail?

What causes a MSD 6A ignition control to fail?

Since the factory wiring is no longer connected to the coil, an interruption in the voltage could cause the engine to try to fire, then fail and try to catch again. You need to confirm 12 volts during cranking. (Make sure the car is in park and all wires are clear of the fan and any moving parts.)

What kind of battery does MSD DIS ignition use?

BATTERY An MSD Digital DIS Series Ignition will operate on any negative ground, 12 volt electrical system without a distributor. The MSD can be used with a 16 volt battery and can withstand a momentary 24 volts in case of a jump start.

What do you need to know about MSD products?

About MSD. Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power and endurance. Today MSD is developing electronics for your entire powertrain.

Why do you need MSD dual sync distributor?

MSD’s Dual Sync distributors are perfect for when you want precise timing control of your engine or are incorporating an EFI system that controls timing. This will allow you to maximize the performance of your engine on the road or race track and will offer several advantages over a standard mechanical counterpart.

How is the MSD connected to the ignition switch?

This wire turns the MSD on and off with the ignition switch. Generally, it will be connected to the wire that used to go to the coil’s positive terminal. It is very important to check for 12 volts on this wire when the key in on (in the run position) as well as during cranking.

How to troubleshoot an MSD 6A / 6Al ignition control?

With the key in the on position (not running), the LED should flash five times to indicate all systems are go. If not, check the battery connections and the battery itself. The battery needs to be fully charged and in good health, then check the MSD connections to the battery positive terminal as well as the ground.

Why does my MSD box turn off when cranking?

Some older vehicles had a bypass that occurred during cranking and when that happens the reduction in voltage during cranking will essentially turn the MSD box off. Make sure to test the 12 volt on/off wire while cranking the engine! There are several other simple installation tips for the rest of the wires.

Which is better capacitive discharge ignition or CDI?

Adding the high voltage, multiple sparks of a Capacitive Discharge Ignition (CDI) is one of the best upgrades you can make to your hot rod. Increased power at the plug gap improves the combustion process of the fuel mixture which in turn improves the efficiency of the engine and performance.

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Ruth Doyle