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Kia Magentis/Optima 2005 2.0 Pet. Code P0340. Changed the cam pos sensor, Fuel pump running but no fuel to injectors. Are there other sensors, vacuum or filter problems.

Engine turning, getting spark 76k miles

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  • Kia Master
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Check fuel pressure?

Posted on Dec 16, 2016

Testimonial: "Pressure at pump ok. Removed & checked, re-installed. I may have to take it in sections just to see possible blockage. Thanks"

  • Randy Ohler Dec 17, 2016

    Most likely you have pressure at the injectors also. Check for power and ground at the injectors. You can with a test light. With the car on you should have power at one of the wires. hook the other end of the light to the other wire. Crank the engine, the test light should blink on and off. If you have coil on plugs, You can check power and ground for them, the same way.

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  • Kia Master
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Fuel filter could plug up.

Posted on Dec 16, 2016

Testimonial: "1st thing in morning Bogdan, as this is Scotland. Very dark & wet at moment. Will keep post updated. Cheers folks, Dave"

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I think it sounds like your CAM sensor has fallen off or is faulty.

The computer controls the ignition timing and the injectors to squirt fuel in to the pistons at the right time. If the computer doesn't sense the cam angle correctly as you accellerate it can't put fuel into the pistons to match the opening and closing of the valves.

If you have a manual you can strip down the top of the engine to see the timing gears on the end of the Cam shaft and see if you can see the cam sensor and if there is anything obviously wrong (i.e. its missing) but you may be as well getting to the dealer to have it checked out and fixed. So the good Fuel pressure will not really effect the engine falling on its face as its a computer timing issue caused by bad sensor information that's causing the bad running.

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