I have done a few things over the past couple of years to address engine maintenance and smoothness needs. Caps & rotors. Coil replacement, Plug and wire replacement. Fuel Filter Replacement. But on occasion, I would still have sproadic idle stability.

Recently, I assumed the bad: I figured I would probably need to diagnose and replace MAF. As I was going through the car to prepare for A DE, I pulled out the Air Filter (which I had just cleaned 2 months prior) to have a peek that the MAF screen before jumping off the deep end. There were a few dead bugs in the screen, but doesn't everyone?

I looked at my air filter and there was SAND in it - and enough of it to impede air flow. Like I said, it was cleaned only 2 months prior. I cleaned it up again, put it in and the car is back to normal idle. MAF replacement deferred!

I have cleaned my air filter out three times in the last 9 months. I drive less than 5000 miles per year. I find my air filter box a bit tedious to button up and I am not thrilled with the prospect of pulling the filter every couple of months.

How often do you check your air filters?

And what have you found?

Stay off the beach, James!

I had belt shavings in mine once. A dirty filter wasn't my biggest concern at the time.

I found Jimmy Hoffa in mine...

Right back at ya.

The prior owner said that while his car was parked for a lengthy time, some mice had taken up housekeeping in the airbox.

Porsche offered special intake tubes with built in sand traps for those parts of the world where there is much sand ....and oil and $$...So Porsche was aware of the vacuum cleaner effect.

Never found anything odd in mine except the odd twig or two...
jp 83 Euro S AT 49k

Charlotte is not known for having beaches. There are a lot of golf courses here, but I can guarantee that I do not drive through sand pits.

The track I've been going to has some sand in the paddocks - so I can probably trace it back to that. Is the 928 the Dyson of the auto world? Geez.

If I find sand again, I will probably be interested in the design of the sand traps (not the golf course sand traps, I mean the Porsche ones).

Until you've found a nest of live mamals you really have no reason to complain (not that I have personally, but I liked Jon928se's tales of air filter nests)

I found a chipmunk nest in mine. Also in the air intake, air injector...

http://lewmanracing.com/images/2005-...ake/index.html

Clean my air filter often too..............mostly bug parts. Take care when refitting the top and ensure the straps are snug that way nothing gets through to the MAF screens.

Sometimes our barn cat brings presents into the garage but thus far hasn't tried to introduce them to the P car............he eats them first!

While getting my car serviced another 928 came in on a flat bed...it had died on the hiway...mechanic traced it to battery cables so loose you could lift them off....then thought he might as well check a few other things like the air filter...when he pulled the driver side air tube off, a mummified mouse fell out...further investigation into the air cleaner box turned up a filter so covered in wheat husks, mouse ****, hair, nests....you couldn't have sucked enought air through that to keep a mouse alive, obviously.

87 eurospec
silver/black

911's

I found my Kempf tensioning tool in it once! I left it on the radiator after a re-tension. Thought it was gone, dropped out and never to be seen again, after driving 3 hours through the mountains. Suddenly I'm getting an overheat so I pull the tubes and the immortal words of Napolean Dynamite hit me...."Idiot!"