Can a differential relay be tested by secondary injection?
Can a differential relay be tested by secondary injection?
Thus, it can be quite tricky to test a numerical transformer differential relay by secondary injection in order to verify that the relay is set properly to protect transformer in a particular application.
What to do if your ECM power relay is failing?
For this reason, if you suspect that your ECM power relay may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the relay should be replaced. The most popular service booked by readers of this article is Vehicle Engine Electrical Inspection.
What to do if there is no injector pulse?
If after all this you got the same result, so it’s time to check the injectors itself if there is no injector pulse on one cylinder, by try to unplug injectors one at a time, if the engine starts when a particular injector is unplugged so that it is the defected one that needs to be replaced
What happens when the fuel pump relay is not activated?
This is the circuit that delivers the voltage (and thus current) to the fuel injection computer (EEC Electronic Control Assembly), fuel injectors, fuel pump relay, etc. When the relay is not activated, this circuit is ‘open’, and as such, does not send any power to anything.
How does the EEC relay in a fuel pump work?
Relay Basics: How The EEC Power Relay Works. This is the circuit that delivers the voltage (and thus current) to the Fuel Injection Computer (EEC Electronic Control Assembly), fuel injectors, fuel pump relay, etc. When the relay is not activated, this circuit is ‘open’, and as such, does not send any power to anything.
What happens when the relay is not activated?
When the relay is not activated, this circuit is ‘open’, and as such, does not send any power to anything. Both of these circuits are completely independent from one another, since the voltage/current flowing thru’ them don’t mix. To get into more specifics, this is what happens when you turn On the Key and crank the engine:
For this reason, if you suspect that your ECM power relay may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the relay should be replaced. The most popular service booked by readers of this article is Vehicle Engine Electrical Inspection.
