How are cylinders connected on a Ford EDIS engine?
How are cylinders connected on a Ford EDIS engine?
On all engines the complementary coils are connected to the cylinders that are 180 degrees apart in the firing order. Example: Ford firing order for HO 5.0L and 351 engines is 1-3-7-2-6-5-4-8. You would connect cylinders 1 and 6 to the same coil, 3 and 5, 7 and 4, and 2 and 8. Follow the same approach on 6 and 4 cylinder engines.
How does the Ford EDIS charger module work?
The EDIS module will automatically adjust dwell time to charge the coil primary up to the pre-determined current limit. The coil driver wired with two primaries shows 1/2 the dwell time of the other coil driver, which is wired normally with one coil primary.
What’s the advance pulse range on a Ford EDIS?
The EDIS module will do all the work of timing the spark, you just send the advance pulse. The EDIS has an advance range of 57.4 degrees BTDC to 10 degrees ATDC. These correspond to the SAW widths of 64 and 1792 microseconds respectively. On 4 cylinder engines pins 10 and 12 are used for the 2 coils.
What does the IDM signal on a Ford EDIS mean?
This signal is used to determine the welfare of the ignition system. If a coil primary opens or does not fire, the IDM signal is not emitted, and thus the coil is faulty. The IDM signal is triggered by the flyback voltage of the coil being fired. The EDIS module processes this into a 512us pulse on the IDM line during operation.
On all engines the complementary coils are connected to the cylinders that are 180 degrees apart in the firing order. Example: Ford firing order for HO 5.0L and 351 engines is 1-3-7-2-6-5-4-8. You would connect cylinders 1 and 6 to the same coil, 3 and 5, 7 and 4, and 2 and 8. Follow the same approach on 6 and 4 cylinder engines.
When was EFI added to the Ford Ranger?
Electronic Fuel Injection (EFI) was added to the engines in 1985. In 1989 the 2.3 was changed to a DIS (Distributorless Ignition System) ignition utilizing a new 8-plug head ( 2-plugs per cylinder). This head had larger evenly spaced D-shaped intake ports and was used until the end of production of the 2.5 in 2001.
What’s the difference between DIS and Ford EDIS?
The Ford EDIS system is an enhanced version of the DIS ignition system. The major difference is that the DIS system requires a CID (Cylinder IDentification; cam phase) sensor in addition to the crank driven toothed wheel. The EDIS system only requires a 36-1 toothed wheel and VRS (Variable Reluctance Sensor)…
Do you need a camshaft sensor for an Edis ignition?
Because it doesn’t need a camshaft position sensor, EDIS is a particularly easy way to replace distributor ignitions when retrofitting older engines with a modern computer programmable ignition. An EDIS system (module/sensor/36-1 crank wheel) appears just like a distributor to MegaSquirt® or MicroSquirt® controllers.
