Do you need a Noid light to test an injector?
Do you need a Noid light to test an injector?
If you use a normal test light to test the injector pulsing, you are not going to get anything. You need a noid light to detect the pulses. helpful?
What to do if there is no pulse to injectors?
If not, you have a ower supply interruption and it could be a faulty ignition switch. Disconnect injector wireharness. Attach noid light across the two terminals. While cranking engine, the noid light should flash, if not, the PCM is not grounding the circuit.
Why are the injectors in my car not working?
It can also be caused by excessive cranking without engine starting so we should not worry about this as it is the injectors that are not working. Lets try this. With test light connected to injector RED wire. Turn ignition on. Test light should come on. Crank engine. Test light shoudl remain on.
How do you test a fuel injector ( ANS )?
Ans: By using a simple diagnostic tool called NOID light, this tool detects a digital signal coming from the ECU and flashes an LED light, so if there is no LED flashing during cranking, this means that there are no pulses coming out of the ECU. Question: How do you test a fuel injector?
What does the Noid light on a fuel injector mean?
If it was, this result indicates that the fuel injector is getting power. Also, that the fuel injection computer is providing a fuel injector pulse signal to activate it. As a result, these test results eliminate the electrical end of the fuel injector circuit; as the cause of the problem or misfire.
Why does the Noid light not flash on and off?
If the Noid light DID NOT flash on and off, this result indicates the the fuel injector is either NOT getting power (usually in the form of 10 to 12 Volts) or that the fuel injection computer is NOT providing a fuel injector pulse signal to activate it.
Why does the fuel injector light not flash?
The noid light does not flash at all when cranking the engine over; check for fuel injector pulse at multiple cylinders as you may just have an issue with that specific circuit. If there is no pulse on all cylinders; check to see if the fuel injector is getting power with the key on and cranking.
If not, you have a ower supply interruption and it could be a faulty ignition switch. Disconnect injector wireharness. Attach noid light across the two terminals. While cranking engine, the noid light should flash, if not, the PCM is not grounding the circuit.
