Misfire & engine light

[martmart]

Hi, my 1998 2.5 Boxster has just started to misfire (rough running) and the check engine light started flashing. I've not driven it other than to a local garage who use a Snap-on code reader. They said all it stated was multipul misfire and advised taking it to Porsche!

At first I was worried about total engine failure (block gone) but then read on here that it can be just the cables to the spark plugs coming loose (I replaced the spark plugs about 6 months ago with no problems).

Any ideas what it could be? Thanks.

PS. over the last few months it has been holding back a bit at 5000rpm+. Like lack of fuel but I replaced the fuel filter. Could this be linked or is this another problem potenitally with some sensor?

[Lil bastard]

A flashing MIL is not a good thing at all. Don't drive the car until a qualified mechanic looks it over. It could be a small item, but the flashing MIL is a warning and Porsche says not to drive the car. The cheapest thing in the long run could well be to have it towed to a qualified shop or dealership. Sorry for your trouble.

[steve00s]

It sounds like the car went into "limp home" mode. Under certain conditions, the engine will shut down a cylinder by deactivating an injector.

[Topless]

Do get a code reader, $35 at Autozone/Napa. Get all the codes and write em down. Do not drive it. A flashing CEL means driving it could kill it.

[dcporsche99]

+1 on not driving it and getting it towed to your trusted Porsche mechanic.

Good luck and keep us posted!

[fatmike]

Was your CEL still flashing when you drove it to the mechanic? Or did it FLASH then turn solid after the "event"?

Get the car checked out & let us know what they find.

[TheGoose]

Did you manage to find out what the problem was in ther edn? I have a similar problem with my 98 2.5l Tip, except my CEL does not flash - it is constantly on...Cheers