S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

A possible MAF problem ?? Please advise....

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Old 04-25-2002, 06:53 PM
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Default A possible MAF problem ?? Please advise....

My 2001 can only boost up tp 7 psi according to my boost gauge. It would boost to the normal 10 psi after a throttle adaptation for a couple of days and it would drop back to 7. Any ideas ??

ps..no fault code when checking with VAG tool.

TIA
Old 04-25-2002, 07:10 PM
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Keep driving it, you should get some soft ce's then after awhile a hard code, bad MAF
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