Corrado V6-2792cc 2.8L DOHC (1992)
Intake Air Temperature Sensor: Testing and Inspection
Intake air temperature (IAT) sensor, checking
Requirement
-
VAG 1551 Scan tool connected
- switch OFF ignition
- disconnect harness connector from IAT sensor
- remove IAT sensor from intake manifold
- reconnect sensor to harness connector
- plug hole in manifold where sensor was removed
- start engine and let idle
- press 1 button to select operating mode "Rapid Data Transfer"
-
display will appear as shown
- press 0 and 1 buttons to select address word "Engine Electronics"
-
display will appear as shown
- press Q button to enter input
- press => button
- press 0 and 8 buttons to select 08 "Read test value block"
- press Q button to enter input
-
display will appear as shown
- press 0 and 3 buttons to select display group 03
-
display will appear as shown
- press Q button to enter input
-
display will appear as shown
- read value displayed in channel 4 "Intake manifold temperature" (approx. ambient temperature)
- spray IAT sensor with a commercial cooling spray
-
displayed temperature must decrease
- press => button
- press 0 and 6 buttons to select function 06 "Ending output"
-
display will appear as shown