Repair Procedures: Inspection

[Fuel Pump] 

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Remove the fuel pump assembly.
3. Check motor operation by fuel pump connector (A) connecting power (No. 2) and ground (No. 4)

Fig 1: Locating Fuel Pump Connector

Courtesy of KIA MOTORS AMERICA, INC.

[Fuel Sender] 

1. Using an ohmmeter, measure the resistance between terminals 1 and 3 of sender connector (A) at each float level.
   Fig 2: Measuring Resistance Between Terminals 1 And 3 Using Ohmmeter

   Courtesy of KIA MOTORS AMERICA, INC.

   Pin No.	Description
   1	Fuel sender signal
   2	Fuel pump (+)
   3	Fuel sender ground
   4	Fuel pump (-)

2. Also check that the resistance changes smoothly when the float is moved from "E" to "F".

   Position	Resistance (Ω)	Capacity (L )
   E	197 ~ 203	2.8
   1/2	64.2 ~ 68.2	22.3
   F	6 ~ 10	41.8