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Home >> Volkswagen >> 1987 >> Vanagon Syncro AWD L4-2109cc 2.1L >> Repair and Diagnosis >> Powertrain Management >> Technical Service Bulletins >> By Symptom >> Driveability >> Fuel Injection - Cleaning/Intake Valve Decarbonization >> Step 1. Preliminary Checks
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Step 1. Preliminary Checks

^ test drive vehicle and determine engine performance

^ check ignition timing point, correct if necessary

^ verify proper thermo sensor
^ P/N: 025 906 041A (Digifant I Vanagon)
^ P/N: 025 906 041 (Digifant I Vanagon Syncro)
^ replace with correct part if necessary

^ check for vacuum leaks
^ repair if found


CAUTION

Part numbers are for reference only. Always check with your Parts Department for latest information.