P 1641

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#1
i have a problem with my kia carnival
P1641 is the code showing,fuel pump primary circuit (definition)

what is the main cause of this problem?
what I need to check ?
which parts is faulty ?
 

kev2

wrench
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#2
what year kia ?
What engine?

this is also called Sedona and badged as Hyundai's also
 

nickb2

Wrench. Diagnostic Tech.
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#4
I would try UK Kia forums.

I cannot find anything for this model in my database. We never see those models here in north american market.

I have never even seen a 2.9 CRDi of this type.

So my responses would be guessing and probably not vehicle specific as I could not, even if I wanted to, give you any wiring schematics or flow charts to follow.

You start by telling us if you are experiencing any problems, such as a no start condition.

I would start by checking the fuel pump relay and related wiring and fuses.