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good evening my name is Roy and I will assist you tonight.
First, I would check the fuel pressure. to low pressure will cause this issue. you can rent a tester at a parts store to verify if it is correct.
the fuel pressure should be 48-55 lbs.
I took your advice and rented a fuel pressure test kit from a nearby parts store. The pressure reading was @ 35 lbs. I ordered a new fuel pump. hope that fixes the pressure problem.
2003 Jetta left rear window blue plastic part of the