Boxster wont start - Help pls ?

[Dale_K]

I've read some other posts about cars that don't start even though they're cranking well and a common thread seems to be the fuel pump. There is a test port on the right side fuel rail for verifying the fuel pressure.

[Ghostrider 310]

Fuel or spark, might check the fuel filter, also sounds a bit like vapor lock regarding the activity when hot.

[jcb986]

Also check your coil paks...they can crack and cause the same problem

[clivep078]

Thanks all. Any ideas on the high pitched noise and sporadic chatter from throttle body area?

[Ghostrider 310]

Originally Posted by clivep078

Thanks all. Any ideas on the high pitched noise and sporadic chatter from throttle body area?

You might need a mass air flow sensor

[clivep078]

I'm goin to give the MAF a clean but its not flagging any codes and I wouldn't expect the fault to be so on / off in symptoms if it was MAF - just general running crap all the time.
Hence I am thinking this noise is a faulty solenoid or pump around the throttle area, which may have a big impact on the car starting or not. If you think back to the old days !! when we had chokes - if the choke was set wrong, the car wouldnt start - equally if you pulled the chocke out whilst driving, it would die - and if the choke was out when hot it wouldn't start. Hence is there something that performs the function of a choke in the area of the throttle housing? This could also explain my o2 sensor code when I was chucking unburned air and fuel on to it !!

[Jager]

What do your plugs look like?