My Boxster won't Accelerate

[porschers]

Let me start out out with the car; It's a 1999, 2.5, Non-egas and 5 speed.
The car starts and ideals fine, but when I depress the accelerator , it bog's out and misfires. It's not giving me any codes; I thought it was the fuel pump so I replaced it and no help
Car ran fine the previous day and now it won't even move.
Any Ideas?
Thanks

[harryrcb]

Originally Posted by porschers

Let me start out out with the car; It's a 1999, 2.5, Non-egas and 5 speed.
The car starts and ideals fine, but when I depress the accelerator , it bog's out and misfires. It's not giving me any codes; I thought it was the fuel pump so I replaced it and no help
Car ran fine the previous day and now it won't even move.
Any Ideas?
Thanks

try changing the fuel filter, often overlooked

[porschers]

The filter is new. I even tried a new MAF, but no go.
Thanks

[JFP in PA]

If it is misfiring, there should be codes, get the car scanned...........

[mikefocke]

New gas?

[JFP in PA]

Have the car tested for fuel volume delivery and pressure. Quickly done, it will confirm or exclude the fuel system.

[Wayne 962]

JFP is right on both counts - if the car is misfiring it will produce codes. The only caveat is if there is something really wrong with the computer and it's fried or having difficulty. Then it may not produce codes or even function properly at all.

Try unplugging the MAF sensor and see if that makes a difference...

-Wayne