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Brainstorm: What would cause the 1.8T to run lean under boost (assume stock MAF/FPR/injectors)

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Old Jun 14, 2006 | 07:46 PM
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Brainstorm: What would cause the 1.8T to run lean under boost (assume stock MAF/FPR/injectors)
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Old Jun 14, 2006 | 07:46 PM
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Fuel Pump Failing
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Old Jun 14, 2006 | 07:46 PM
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Fuel Filter Plugged/restricted
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Old Jun 14, 2006 | 07:47 PM
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FPR going bad
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Old Jun 14, 2006 | 07:47 PM
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primary o2 sensor failing?
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Old Jun 14, 2006 | 07:47 PM
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Bad/Failing MAF Sensor
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Old Jun 14, 2006 | 07:48 PM
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Leak between MAF and turbo (would suck in unmetered air)
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Old Jun 14, 2006 | 07:52 PM
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Leak on vac line to FPR?
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Old Jun 14, 2006 | 07:57 PM
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Clogged injector(s)?
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Old Jun 14, 2006 | 08:00 PM
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yeah, make sure your TIP is on both the turbo and airbox properly
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