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2003 jetta tdi no boost or power when first started no CEL after running 10 minutes + the boost / power return runs great after that .
 

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2001 and 2002 Jettas, 02J 5-speeds
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2003 jetta tdi no boost or power when first started no CEL after running 10 minutes + the boost / power return runs great after that .
Sounds like a fuel delivery problem. Try changing the fuel filter. Put a tiny dab of grease on the t-fitting o-rings. The lift pump puts a few PSI on the injection pump. Once the injection pump starts to pull then it runs better.
 
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