2005 kia sedona ECU replacement

Question edited to add your year make model. That must be in every question please. I just recognised your name.
Question moved to sub category.

Crazy place where is can get wet! Under passenger carpet.

https://www.google.com/search?q=2005+kia+sedona+ex+ecu+location

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https://www.google.com/search?q=2005+kia+sedona+ex+ecu+location

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Question edited for clarity.
Question moved to sub category.

P0304 is only a misfire error to cylinder 4.

https://www.700r4transmissionhq.com/p0304-kia-sedona/

There isn't a 'fuel control module'.

https://www.google.com/search?q=2005+Kia+Sedona+2EX+3.5+Fuel+control+module

But there is a fuel pressure regulator

https://www.google.com/search?q=2005+kia+sedona+fuel+pressure+regulator+location

When you look up fuel 'module', you come back to the fuel pump.

https://www.google.com/search?q=2005+kia+sedona+fuel+module+location

One thing you might try is moving coil pack 4 to another cylinder and see if the code moves. After that do a plug swap and see if it moves. Do them separately not coil and plug together..
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Sarah, The Engine Coolant Temperature Sensor on your Kia is located below rad hose driver side by exhaust manifold. May be a good time to flush coolant system when changing sensor.
Check the attached links,instruction and guides, Good luck
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How to Replace Lower Engine Coolant Sensor

Coolant Flush How to Kia Sedona 2002 2005 2003 Kia Sedona EX 3 5L V6

2003 KIA sedona engine coolant temperature sensor location Google Search

Kia Sedona Starting/Stalling/Idling Problems - Car Forums at ...

forums.edmunds.com > Kia > Kia Sedona

Jul 10, 2006 - 31 posts - ‎16 authors
Learn more about Kia Sedona at the Edmunds.com Car Forums! ... My 2002 Sedona has 77K miles and it has a great deal of torque off the line. When we go over those white lines at the stop lights the engine always slips the ... The car will just stall out or buck hard as if it wanted to stall but caught again.

Why does engine stall intermittently while ideling or driving ...

repairpal.com > Questions > Kia > Sedona > 2005 Kia Sedona

I was leaving work, coasting to a stop sign, and it just quit. ... Why does engine stallintermittently while ideling or driving? on 2005 Kia Sedona ... But, the latest occurance left me and my family stranded 100 miles from home in freezing ... never wait to findout reasons for this kind of issue. they never get better by themselves ...

Idle Air Control Valve - Car Talk

community.cartalk.com/discussion/2285074/idle-air-co

2005 kia Sedona

follow the possitif from batterie,you automatic come on starter

Did you check the ignition system? The module and the ignition usually at fault when u can't start the car! U have replace the ECU w/o any scanning by the dealers computer to check wuts wrong w/ ur car? That'll be a shot to the moon! Pls go to ur nearest dealer and have ur car scanned by their computer analyser! hope that might help u! taaah!

there must be a short somewhere, has it been in a wreck?
check all the wires going to the headlights

on transmission has 2 wires at right side of trans .by axel