Better but still not running perfectly

[wawa]

Boxster 2000 S

Lately, the idle was bouncing a lot and shaking the car. When I was trying to drive a little hard, It feel like not much power and engine was often cuting power. When I depress the clutch, engine would die. Start again and was running ok, sometime à good cloud of smoke.

Now, last week I changed the MAF and clean the throttle body, but no change. Tonight I changed the AOS (not that easy) and now idle is really good, but I still have engine power cut out. Still no code. Next step in 2 days, I will change the spark plugs and the fuel filter.

Anything else worth to check while I'll be under the car?

Tanks
Chris

[Jager]

Fuel filter, fuel pump... When was the last time the filter was changed? Check your fuel preasure, pump may be going bad.

[wawa]

I dont know about the fuel filter but not since I own the car. So it will surely help.

How do I check the fuel pressure? Do I need special tools? I need to search about that on the web.

Thanks
Chris

[wawa]

Found fuel pressure procedure. Will change fuel filter in 2 days and see if I need to do it.

Thanks
Chris

[kjc2050]

Please post a link...

[wawa]

Its on Pelican Parts board

http://www.pelicanparts.com/techarticles/Boxster_Tech/19-FUEL-02_Sensor/OBD-II-scan.pdf

Chris