Rookie to this site needs help! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

cjweiss · 10-09-2008, 04:13 PM

Ok, I'm new, not only to this site but any site such as this...so forgive me if i am doing or asking anything inappropriate. With that said, can anybody send me in a logical direction as my 02 S with 22k just died while driving it today and will crank but not re-start. This is my first problem with this car. Flat bedded it back home. Looking for a logical beginning ...you know start with the easy (hopeful) stuff. Any ideas?

CJ_Boxster · 10-09-2008, 04:27 PM

if the idle has been or started to get dippy before it died then its likely the MAF sensor gone bad, a good way to test it is to disconnect the connector to it and try starting it again, if it starts then MAF is bad. Also you can let the engine cool down for 3 hours and try again and it should start back up... has something todo with the bad MAF giving off a incorrect intake air-temp or air velocity reading once the engine and the bay has warmed up

cjweiss · 10-09-2008, 04:48 PM

Idle had been fine. In fact, car ran perfect. Driving at about 40 and just shut off. Car has sat about 5 hours now. Still does not re-start...so would you say rule out the MAS? (I hope I replied using the correct format) Thanks CJ

rick3000 · 10-09-2008, 04:55 PM

Was it leaking oil, and/or did you hear what sounded like a coin rattling around in the engine?
If yes, it could be IMS or RMS, but hopefully it is something simpler, and less expensive. If it just shut off for no reason, with no warning, I wonder if your key battery died and activated the immobilizer? If could be a lot of different things, more detail would help.

Adam · 10-09-2008, 05:08 PM

Quote:

Originally Posted by rick3000

Was it leaking oil, and/or did you hear what sounded like a coin rattling around in the engine?
If yes, it could be IMS or RMS, but hopefully it is something simpler, and less expensive. .

Why would a RMS leak cause the engine to die and not start?

rick3000 · 10-09-2008, 05:18 PM

If the RMS seal was leaking prior to the car dying, then it is possible that an RMS failure occurred where all the oil drains out of the engine and destroys it. Then when you try to restart the car later, the electric start would work, but the engine would not start.