Chapter 4 EI system diagnosis Section 4 EI system troubleshooting
4—24
Tester knob indication : Resistance (
㏀
)
Is the resistance OK?
IAP(Temperature function)
Sensor resistance
Intake Air Temp. Resistance
-20
℃
(-40
℉
)
Approx 14.541
-0
℃
(32
℉
)
Approx 5.627
20
℃
(68
℉
)
Approx 2.429
40
℃
(104
℉
)
Approx 1.155
60
(140
)
Approx 0.594
80
(176
)
Approx 0.3277
120
℃
(248
℉
)
Approx 0.1168
140
(284
)
Approx 0.0749
YES
●
Bl/Gr or G/Bl wire open or shorted
toground, or poorB8（J2-8）
orB10(J2-10)
connection of ECU coupler.
●
If wire and connection are OK,
intermittent trouble orfaulty
ECU.
●
Recheck each terminal and wire
harness for open circuitand
NO
Replace theMAP & IAT Sensor with a
new one.
B10
B8
B10
B8
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