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Old 07-28-2014, 03:15 AM   #1
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Boxster Performance issue


I recently bought my first porsche boxster 2001 model. It's in a relatively good condition other than the few bumps, scrapes and scratches and a few internal items that I needed to replace.

I have noticed that when the boy racer mood strikes and I reach 4800 - 5000 rpms the engine seems to give a little back, like it's being smothered or something, I don't know how else to explain my problem.

Is there anybody that can maybe give me some advise on this?

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Old 07-28-2014, 06:29 AM   #2
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Sounds like Fuel pump or filter is not outputting enough fuel and pressure starts dropping at higher RPM. Have the fuel pressures checked at idle and higher rpm.
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Old 08-04-2014, 09:15 PM   #3
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Ok thanks I will have it checked with its next service interval coming up
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Old 08-05-2014, 08:22 AM   #4
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Have them perform a "fuel volume test" using a PSTII or PIWIS.

If they don't know what I'm talking about?? RUN. It's spelled out in the factory manuals how to do this.

Fuel pressure will tell you nothing. It's a volume issue with these cars, and it is performed utilizing the above mentioned tools (that 80% of the shops don't have)

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