p0604, p1693 - Kia Forum
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post #1 of 3 (permalink) Old 05-24-2008, 11:58 AM Thread Starter
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Default p0604, p1693

I am also getting a cylinder 1, 2, 3, and 4 p0 code for misfire and a random cylinder misfire as well as p1693, and p0604. The 2000 kia sephia is running like crap and the engine is moving all over the place. Out of the exhaust it sounds like a diesel engine. Any ideas? I would greatly appreciate it.

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post #2 of 3 (permalink) Old 05-24-2008, 12:39 PM
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have you replaced plugs, coil packs and ignition wires?
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post #3 of 3 (permalink) Old 05-24-2008, 01:16 PM
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Welcome to the forum.

For the misfire codes I'd recommend a new set of plugs gapped to 0.03" (0.75mm) and if that doesn't sort out the misfire then you likely need new ignition coils and wires.

Codes P0604 and P1693 point towards a problem with the ECU, but I'd first try the plugs then reset the ECU and see how it goes.

Quality and not quantity counts.

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