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???s regarding surging or inconsistent boost

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???s regarding surging or inconsistent boost

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Old

Jan 19, 2001 | 06:29 AM

#1

cs22

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???s regarding surging or inconsistent boost

I get occasional surging problems when getting to around 4000-5000 rpms. Yesterday it was quite bad, the car just felt weak and right around 4500 rpm, I felt inconsistent boost/power. Not quite as bad at partial throttle. Seems to get worse as the car warms up. The car is a stock '01 S4 and has around 3500 miles. I checked the tbb and it looked fine. Any suggestions as to what it could be? TIA

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Old

Jan 19, 2001 | 06:36 AM

#2

SlimS4

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Did you remove the TBB and inspect it?

Sometimes the tears are under the clamps which make them hard to see if you don't remove the boot, but will still affect performance.

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Old

Jan 19, 2001 | 07:19 AM

#3

cs22

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Re: Did you remove the TBB and inspect it?

I didn't remove it, but loosened the clamp enought to move it and looked underneath - I didn't see any tears.

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Old

Jan 19, 2001 | 10:04 AM

#4

eharleq

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A search will also yield low octane gas.

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Old

Jan 19, 2001 | 12:10 PM

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SlimS4

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If you want to be sure, I would remove it completely and inspect

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Old

Jan 19, 2001 | 06:56 PM

#6

Juan M.

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You have foul plugs!!!! replace your plugs........

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Old

Jan 20, 2001 | 05:35 AM

#7

cs22

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In a car that is less than two months old?

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Old

Jan 20, 2001 | 05:37 AM

#8

cs22

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I use 93 religiously - don't get 94 in the area

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Old

Jan 24, 2001 | 12:24 PM

#9

Evzen

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I use 94 and find a slight difference in performance (sound)

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