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DOHC - 2.3L Duratec / Mazda L Engines Discussions and Topics specific to the Duratec 4 cylinder engines

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Old 06-25-2014
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2008 2.3

Hi, I have a 2008 2.3 that starts and runs for a few minutes and then dies,but it will start right back everytime. I have changed the fuel pump,filter and crank position sensor . And it doesn't have any codes.Anybody have any suggestion. Thanks, Brad
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Old 08-01-2014
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is it idle-ing too low? like 500 rpms?
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Old 08-01-2014
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possibly a failing ignition coil
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Old 08-01-2014
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No
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Old 08-01-2014
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have you tried using a spark plug tester

ignition coil packs have been known to fail once heat is applied to the outer casing

i would replace the ignition coil 1st before anything else
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Old 08-09-2014
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Replaced coil and it is doing the same thing.I put a spark tester and it does stop firing.
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Old 08-09-2014
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check the fuel safety cutoff
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Old 08-09-2014
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unplug the coil connector

have crank the engine while you use a LED 12 volt test light to see if the coil is still receiving power
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Old 08-10-2014
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I unplugged the TPS and drove it around the block,and of course the transmissiom wouldn't shift and then I plugged it in and had to take of battery cable to reset it and get the tranny working and the thing is running fine.really don't know what it was but it's working for now.
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Old 08-10-2014
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when the battery is still connected , the ECM is still receiving a signal from the TPS

any time you replace any sensor , always dis-connect the battery 1st
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