Waterlogged 99 Boxster

[landrovered]

Yes, I use those schrader valves all the time, handy little buggers. If it makes you feel any better I have a friend who ran his LR out of gas and burned up his fuel pump, I have been helping him, I had two fuel pumps of different sytles in my truck and wouldn't you know that his is neither of the ones I had. I had to flat strap his truck to his office which is always a joy. He only ran over the tow strap once.

I used the term fuel pressure sensor but actually meant regulator in the last post.

If you have fuel in the rail and still don't get any joy, I had a recent situation where a bosch controlled motor was dying and would not restart, it turned out to be a bad crank position sensor.

[ARModen]

Originally Posted by landrovered

I used the term fuel pressure sensor but actually meant regulator in the last post.

If you have fuel in the rail and still don't get any joy, I had a recent situation where a bosch controlled motor was dying and would not restart, it turned out to be a bad crank position sensor.

Both of those are definite possibilities. The car makes the usual beautiful vroom when I start it up, but instead of settling down to a nice gurgle, it dies. would the crank sensor give me an error code though?

[landrovered]

It was not a Porsche but it was bosch and it threw no codes. Just wouldn't start or would die suddenly. I trouble shot the fuel system and then after swapping the fuel pump I knew I was barking up the wrong tree. I inspected the CKP and saw that the cover was rotten, I cleaned it and it made a difference so I ordered a new one and replaced it and the problem was solved.

[ARModen]

Well good news/bad news. I checked the pump power cable when I was cranking the engine and the pump is getting power, so it's not the immobiliser or an inertia relay problem. I also checked the fuel line at the rail and it was indeed getting fuel, so it's not the filter, and probably not the regulator. There was definitely enough pressure to spray me so it should have enough flow to run the injectors.

[landrovered]

Well actually that is good news. The more you eliminate the closer you are to a soultion. I would look hard at the crank position sensor, throttle position sensor and the spark system.

[ARModen]

yeah I am going to be checking the spark and injectors when I get home. Most likely it is something that is disabling all the cylinders otherwise it'd be running and I'd get misfire codes.

[landrovered]

The things that throw codes and the things that do not are hard to reconcile sometimes.

crank sensor takes a crap - no codes
Leaky head gasket - no codes
new gas cap - codes
dirty MAF - codes

Go figure!

[yimmy149]

I'm not sure if it's already been mentioned in this thread, but the ignition switches go bad on these cars very frequently. It's a $20 part from VW, and an straight-forward DIY if you have small hands. It's probably worth changing just to rule it out, lots of strange things happen when it starts to fail.

-james

[Mark_T]

Fuel
Air
Spark
Timing

[ARModen]

Lol, way late Mark. I just updated the thread so if someone searches for it later, there's an answer at the end. I was told excess ethanol could have been the problem, and would have masked water in the fuel at the same time.

[Mark_T]

Oops - missed the third page! LOL - I'll blame it on old age and a short attention span.

Mark