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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 B >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (1.9L - Fuel Injection Glow Plug, Engine Code ALH, From My 2002 (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Measured value blocks >> Evaluating Measured value blocks, at idle >> Evaluation: Injected quantity display

Evaluation: Injected quantity display

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VAG1551 display Possible cause of malfunction Corrective action
Below 2.2 mg/H
  • Injection pump too rich
Above 9.0 mg/H
  • Engine too cold
  • Run engine at increased speed to warm up and repeat check
 
  • Injection pump too lean
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