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Posted on Jan 02, 2017
SOURCE: turns over won't start getting
GIVE IT A SHOT OF STARTING FLUID IN INTAKE IF IT RUNS FOR A MINUTE THE CONTROLER FOR INJECTIORS HAS PROBLEMS IF NOT CHECK FOR SPARK AT SPARK PLUGS THIS WILL TELL YOU REALLY WHAT SYSTEM YOUR HAVEING PROBLEMS WITH. USALLY IF THERES FUEL AT INJECTORS ITS A SPARK PROBLEM GOOD LUCK
Posted on Aug 20, 2011
Check for a fuse for the injectors in the power distribution box by the battery. Parts stores sell a cheap little tester called a "noid light" for testing injector circuits. They come in several sizes, so get the one that fits your injector connector. To use it, you pull off one injector connector and plug in the test light. If the circuit is good, the light will be blinking when the car is cranked over. If you get nothing, pull off all the injector connectors and test again. If you have one shorted injector, it may have shut down your injector drive circuit- that's why to pull off all connectors and re-test.
Here's a brief on how the injector circuit works: When key is on. the injectors will have constant battery voltage available to them on the power side (the injector drive circuit). When the engine is cranking or running, the engine computer will momentarily ground the ground circuit of injector (the ground wire goes straight into the computer for internal grounding), causing the injector to pulse. If you have no pulsing, determine if it is the drive circuit (no power to injectors), or the ground circuit that has failed.
Posted on Jul 10, 2012
Hello, Just by my experience with my 91 dodge grand caravan, I would start checking 3 things. First, did you replace spark plug wires to the correct location(Plugs 1, 3 and 5 on the back, Plugs 2, 4 and 6 on the front,That's all starting from the Passenger's side.) 2nd, do your dash lights and electronics turn on when it turns over? If not, try jumping it and 3rd if engine finally runs after that and then shuts off, then your alternator will be next to check however if engine dosen't start running from trying to jump it then the problem is more than likely your alternator. Though make sure you have plugged in all plugins that you might of unplugged like the one that plugs into your DIS coil pack and all vacuum hoses are connecting. Hope this helps and good luck!
Posted on Oct 16, 2012
There should be an injector fuse. Each injector has two wires to it-a power wire and a ground wire. The power wire should be hot anytime the key is on. Check for voltage with a test light. Usually the power wire is the same color to all injectors, while the ground wire for each is a different color from any others.
To check fully the injector circuit, purchase a cheap "noid light" at a parts store. You hook up the noid light into an injector connector. You can start the car or just crank it over. When the engine is running or cranking, the noid light should be blinking. If it blinks, the injector circuit is working for that injector. If it doesn't even light up, it could be the power side or the ground side. (The ground wire runs into the computer for controlling pulse by internally grounding the circuit for a split second.) If the light stays on steady, the computer is faulty-the internal injector ground is staying on, practically unheard of.
If the injector circuit is good, check fuel pressure-very critical on chevys that starting fuel pressure is correct. If all good, check for spark.
Posted on May 03, 2014
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