Eurovan V6-2800cc 2.8L (AES) (2000)
Intake Air Duct: Testing and Inspection
Special tools, testers and auxiliary items
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VAG 1551/1552 Scan Tool using VAG 1551/3 adaptor cable
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G 001 800 A 1 Leak detector spray
NOTES:
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If there is a leak manifold vacuum will draw the detector spray along with outside air into the source of the leak.
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Leak detector spray reduces mixture ignitablity, leading to a drop in engine speed and a significant rise in CO content.
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Always observe safety precautions listed on the container.
Test sequence:
Connect VAG 1551 Scan Tool
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With engine idling, press 0 and 1 buttons to select Address Word 01: "engine electronics."
Display will appear as shown:
Rapid data transfer HELP
Select function XX
Press 0 and 8 buttons to select Function 08 "Read measuring value block."
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Press Q button to enter selection.
Display will appear as shown:
Read measuring value block HELP
Input display group number XXX
Press 0, 0 and 1 buttons to select "Display group number 1."
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Press Q button to enter selection.
Display will appear as shown: (1 to 4 = Display zones).
Read measuring value block 1 --->
1 2 3 4
Note Oxygen control in Display zone 3
Display group 1: Idling test
Systematically spray intake system components with leak detector spray.
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If engine speed drops or Oxygen control value changes.
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Press 0 and 6 buttons to select Function 06 "End output."
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Press Q button to enter selection.
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Check suspected leak-sprayed area of intake system for leaks and eliminate as necessary.