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-   -   Boxster Performance issue (http://986forum.com/forums/performance-technical-chat/53415-boxster-performance-issue.html)

Wascott03 07-28-2014 03:15 AM

Boxster Performance issue
 
Hi

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?

jsceash 07-28-2014 06:29 AM

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.

Wascott03 08-04-2014 09:15 PM

Ok thanks I will have it checked with its next service interval coming up

Brad Roberts 08-05-2014 08:22 AM

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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