What happens when you ground the ignition coil?
Therefore, to minimize electrical interference, this loop area has to be as small as possible. If you ground the ignition coil to the battery, you have a problem because the high voltage current has to flow out of the head, to the grounding strap to the battery and then back from there to the ignition coil.
What happens if the engine ground is bad?
The engine ground provides an electrical return path for the starter motor. A bad engine ground is a common problem leading to hard-starting and no-starting conditions. The following test takes a voltage drop reading to locate unwanted resistance in the engine ground path.
Where are the grounding grounds on my truck?
G109 – Diesel In the Engine Harness on the Right front of the Engine Block Power and Grounding Component Viewsin Wiring Systems G110 In the Chassis Harness on the frame to the rear of the left front tire. Power and Grounding Component Viewsin Wiring Systems
How is the sensor ground grounded to the engine?
The sensor ground is externally grounded to the engine, as well as to the ECU. The ECU is grounded to the engine also. We know that as the injector duty cycle increases, the average ground current of the ECU will also increase, and therefore so will the voltage drop between the ECU and the engine.
Therefore, to minimize electrical interference, this loop area has to be as small as possible. If you ground the ignition coil to the battery, you have a problem because the high voltage current has to flow out of the head, to the grounding strap to the battery and then back from there to the ignition coil.
The engine ground provides an electrical return path for the starter motor. A bad engine ground is a common problem leading to hard-starting and no-starting conditions. The following test takes a voltage drop reading to locate unwanted resistance in the engine ground path.
What causes bad ground connections on a car?
When checking ground connections, make sure the terminals attach to a non-painted surface. You want to connect to bare metal. Paint, corrosion, greasy surfaces, frayed or broken wires, and loose connections are the main cause of bad automotive grounds.