How to troubleshoot Chevy fuel injector problems, step by step?
Place the red lead on one of the connector (not the injector) contacts and the black lead on the other contact. If you get a reading of between 1 and 2 volts, then the connector is working fine. Check each injector’s resistance through the electrical connector with a voltmeter.
How do you test a fuel injector for voltage?
Test each wire for voltage. Take the sharp end of the test light and press it firmly into the rubber coating around each wire until it penetrates into the metal wiring itself. One of the two wires should make the test light turn on when it comes into contact with the wire inside the protective coating.
What to do if your fuel injector is not clicking?
If you find one that is not clicking, there is an issue with the injector or the electronic control that is transmitting to the injector. If you have an OBDII scanner and your vehicle’s check engine light is on, you can check to see if there have been any errors in the vehicle’s computer regarding that cylinder or injector.
Why is there no pulse on fuel injector?
If still no injector pulse, then the computer is not pulsing the injectors open for some reason and more testing will be needed. 4) Again, you want the Noid light to blink consistently when cranking the engine over. This is a good signal.
What happens to the fuel injector in a Chevy?
The fuel injector in a Chevy is responsible for metering the fuel that enters the intake manifold, and ultimately the engine. If your fuel injectors are dirty or are leaking, you’ll notice decreased performance, increased fuel consumption, and your engine may not run at all in extreme cases.
Which is fuel injector do I test first?
Replace the fuel injector. If you’re interested in saving some bucks on the original AC Delco/Delphi fuel injector, take a look at the section: Where To Buy The Fuel Injector And Save. Which Fuel Injector Do I Test First?
What should fuel injector resistance be in GM 2.2L?
After verifying the resistance value, write it down on a piece of paper. Don’ forget to write down what cylinder that reading belongs to. The fuel injector resistance should be around 1.9 to 2.3 Ohms (although on your specific GM 2.2L car or pick up, this value might be a little different).
How to diagnose a misfire code GM 2.2L?
How To Diagnose Misfire Codes (GM 2.2L). CASE 2: One of the four multimeter resistance values is drastically different: Retest all four fuel injectors to confirm the initial resistance values your multimeter registered. If they are the same as before, then the fuel injector that registered the different resistance value is bad.