What is the role of the ignition coil?
Its two main roles are to create a spark strong enough to ignite the air/fuel mixture for combustion and to control the timing of the spark plugs by opening and closing the ignition coil ground circuit.
When does an ignition module need to be replaced?
If the light blinks, the module is good. If the light is blank or constant, the module is bad. Before you attempt to replace the control module, you must rule out other ignition system components. The module is expensive and replacing it is a laborious process. Check the ignition coil for a spark.
Where are the vats wires in a corvette?
Thought this might be helpful to someone.. NOTE *1 The VATS (Vehicle Anti-Theft System) wire may be (2) thin YELLOW wires, (2) thin TAN wires or (2) thin WHITE wires, these wires are usually in a ORANGE or BLACK HEAT SHRINK TUBE, but at times are left out of the tube and ran by themselves up under the dash to the Security Module under the Dash.
What happens when an ignition module overheats?
Ignition modules that are overheating will soon completely cease to function and in the meantime can cause cause electrical shorts, engine stuttering, lower gas mileage, power loss, stalling, and gasoline odors in the exhaust.
Can a coil over plug be replaced in an ignition?
Whether it’s replacing the single coil mounted separate to the distributor, the HEI coil, a coil pack, or a coil over plug, we’ve proven on more than one occasion that coil upgrades do provide performance benefits including incre ased power you can see on the dyno.
What makes an ignition coil A Hei coil?
Developing a better HEI coil was actually where Performance Distributors began in the ignition business many years ago. Davis says the key to maintaining consistent voltage throughout the RPM range is in the internal construction of the coil. “We build our coils to use heavy gauge windings and more windings per coil than the OEM parts,” Davis says.
Is there an ignition coil for a muscle car?
In that time engine technology has improved dramatically and ignition systems have evolved as well. One of the more popular ignition upgrades on both modern and classic muscle cars is the ignition coil.
Why do ignition coils drop off at 5000 rpm?
Davis says that the OEM coils were notorious for drop off above or about 5,000 rpm. That might be ok for a half-ton pickup that never sees more than 4,500 rpm, but on a muscle car, especially one that’s been modified, losing voltage means lost engine performance, and not being able to take advantage of the engine’s potential modified or stock.