Question about 2000 Kia Sportage

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What could be the causes of injectors not opening and spark plugs not firing

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  • Charles Tucker May 20, 2014

    Hi lotus , I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?

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Write your answer...no check ingine and heater light and fuses are oky

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As a general cause, the problem seems to be powering. If the engine is turning over, most likely the battery is ok. There could be a blown fuse or the computer may be defective or missing.

Posted on May 07, 2014

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A long list of things. From fuses to ignition switch to ecu to security alarm and more.

Here is how to start looking: Turn the key to on. Do the dash gauges and warning lights and check engine light come on? Then power is getting to the switch and being sent out from it. Next, use a test light and check for power TO the coils and TO the injectors with key on. All four injectors use the same color power wire. My wiring diagram is poor quality, but it looks like a green wire or possibly a gray wire-remember same color power wire to all injectors-the other injector wire is a ground wire, and they are all different colors. Pull one injector connector off and check for power on one terminal with key on. And could do the same at the coil pack. With key on, the white wire with red stripe to the coils should have power-actually, the white wire is spliced and two white wires are shown going to coil pack-this is the primary current to the coils- is hot in run or start.

If no power to coil or injectors, here are the fuses to check: in the under hood fuse/relay block: ecu-10 amp fuse, Eng-15 amp fuse, and these maxi fuses: fuel inj-30 amp fuse, Main- 80 amp fuse, Ign-40 amp fuse. And one more- a designated Main fuse-15 amp fuse.
If these fuses are good, should have power going to injectors and the coil pack with key on. If the key is turning on the dash, some of those fuses are known good, but need to check all of those listed.

I will stop here, and wait for your reply. You get this far, you are on the way to diagnosing the problem.

Posted on May 07, 2014

  • montehammons May 08, 2014

    And if you don't have a test light, then skip that test for now, till you DO get a test light , lol, and check the fuses listed. Pull each one out and check if it is blown or damaged in any way.///

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