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EuroVan (2.5L)

  1. Connect Scan Tester (VAG 1551) to Data Link Connectors (DLC) located in fold-down storage shelf in front of relay panel. With scan tester in READ MEASUREMENT BLOCK function, ensure coolant temperature is more than 185°F (85°C) as displayed in channel No. 1 of scan tester.
  2. Allow engine to run 2 minutes at idle. Read and record closed throttle position value in channel No. 4 of scan tester. Check full throttle load enrichment by gradually pressing down accelerator to 3000 RPM and then releasing it.
  3. Display value must increase, drop down to 0 milliseconds, then return to value recorded at closed throttle. If specified values are not obtained, check idle speed. Also check THROTTLE POSITION (TP) SENSOR ADJUSTMENT in ON-VEHICLE ADJUSTMENTS article.
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