Mazda 3 manuals

Mazda 3 Service Manual: Fuel Gauge Sender Unit Inspection

Mazda 3 Service Manual / Body / Driver Info & Control / Fuel Gauge Sender Unit Inspection

MZR 2.3 DISI Turbo, SKYACTIV-G 2.0

NOTE:

1. Disconnect the negative battery cable..

2. Remove the rear seat cushion..

3. Remove the fuel pump unit..

4. Verify that the resistance between terminals A and C of the fuel gauge sender unit based on the height of the float as shown in the figure.



Float height (mm {in})

Resistance (ohms)

165.6 {6.520}

9.5—12.5

159.3 {6.272}

20.0

130.1 {5.122}

109.4

91.3 {3.59}

194.8—222.2

52.2 {2.06}

307.6

25.7 {1.01}

400.0

20.0 {0.787}

414.5—405.5


MZR 2.0, MZR 2.5

NOTE:

1. Disconnect the negative battery cable..

2. Remove the rear seat cushion..

3. Remove the fuel pump unit..

4. Verify that the resistance between terminals B and D of the fuel gauge sender unit based on the height of the float as shown in the figure.



Float height (mm {in})

Resistance (ohms)

168.5 {6.634}

18—22

130.1 {5.122}

107.2—111.6

91.3 {3.59}

206—211

52.2 {2.06}

304.6—310.6

40.6 {1.60}

333.5—339.5

12.1 {0.476}

396.8—403.2


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