Stefan

Typically people bypass one or more chambers by welding a bypass pipe externally. I have also seen stick a demel tool in the muffler input and make holes so as to let some of the incoming exhaust go directly into the second chamber.

The Porsche Sport Exhaust has a bypass tube that goes from the first chamber directly to the tailpipe. It is opened and closed via a vacuum flap that can be actuated automatically or via a switch on the dash.

In the first picture the tailpipes are round. In the second they are rectangular. It doesn't look like round would fit with the style of the bumper cutout on the Cayman IMO.

I understand that the older Boxster DMEs cannot be reprogrammed. How can I tell if my Boxster DME can be reprogrammed with the 996 map? Is it a different part number or can I query the software revision using the PST2?

(A guy who is helping me with some of the grunt work is insisting that my DME is the "old style" which cannot be reprogrammed except by taking it apart, removing the chip, and having it reprogrammed. My DME is silver, not black which he says is how you can tell the difference.)

I would have guessed a cracked ignition coil. That is a common problem on old Boxsters and causes the exact symptoms you report.

blinkwatt,

The early 986 cars don't have the hole in the bumper but they do have a cutout. You can cut it yourself. See here:

http://www.ppbb.com/boards/ppbbphp/showfla...rt=all&vc=1

That's great information. It's amazing how much misinformation is floating around about this stuff.

I have just recevived the immobilizer, KLC, and DME codes from the dealer for my car.

I think the information I heard about needing the VIN had to do with the fact that it is with this information that the dealer retrieves the codes. So it isn't the PST2 that requires the VIN but the dealer.

I would much rather reprogram the new DME so that I can sell the old one with the codes. If I can't get the codes for the new one then it is pretty much just a shiny paper weight.

As far as reflashing the brain with the 996 map, do I need to get the map from somewhere or does the PST2 have that info built in? Or can I read it from the new DME and write it into the old.

Sorry if I'm not being clear. I'm afraid I don't have the terminology down.

I am taking a 3.4L 996 engine and the control unit (the one located in the trunk - Part # 996.618.601.04) out of another Boxster and putting them in my car. I have been referring to the control unit as "the DME" and I guess that isn't correct.

So I need to reprogram the control unit to work with my immobilizer. I was told that in order to do this the VIN in the control unit and the immobilizer have to match. I was told that in order to change the immobilizer code you have to have the learning codes and that in order to put in a new VIN you have to have the old VIN.

I will also need to feed the key transponder codes in but I believe that is pretty straightforward (and yes, I do have the original code tags for the key transponders).

That sounds right. Sorry, I must have been using the wrong terminology.

I was also told that the IPAS code is not enough, that I also need to enter the VIN for the vehicle the DME was previously in before I can make one or more of these changes. Can you confirm that?

Thank you very much for your help, Loren.

I believe that the only settings I need to migrate are the immobilizer code and the VIN. I don't want to change the ignition mapping or anything like that.

Yes, Nick I think you are right. The procedure probably involves entering the IPAS code then copying a bunch of numbers. I would be surprised if Porsche didn't have a step by step document describing the procedure.

Thanks, Loren.

I talked to the dealer and they hedged a bit then agreed to get me the codes. They still haven't given them to me because their computer has been down for several days.

Once I get the codes I will probably need the procedure for programming the DME to work with my immobilizer unless it is obvious how to do it. I can't find a TSB on the subject. Is there a document describing this procedure?

I see. If you have the AMP part number (which seems to always be stamped on the actual connector), the vendor I mentioned will probably be able to get it.

Reading the part numbers from the amplifier plugs (both male):

Big connector (amp to speakers)

"AMP 1-828-881-2 H"

"BMW 1 383 515"

Small connector (radio to amp)

"1 962748-2 PET"

"AMP 1-963539-2"

I was unable to find where I put the link for the website that sells them individually but they are standard connectors. As Tool Pants mentioned, the manufacturer is AMP/Tyco.

The smaller plug looks identical to the part for 1-963539-1 (even though it says 1-963539-2).

This place

http://www.summitelectronics.com/index.html

says "No Line Item Minimum" and (at http://www.summitelectronics.com/about.html), "no order is too small, too large, or too unusual for us to handle" and "Our mission is to locate and expedite all your requirements, no matter how large or small"

They are open 24/7/365.

I need to reprogram a DME that came from another car (a 1999 Boxster) to work with my car (also 1999 Boxster). I understand that in order to do this I need the vehicle security codes, which can only be obtained from Porsche. I have access to a PST2 but it is implied from the 986 FAQ (http://www.986faq.com/8-0/default.asp#009-004) that these codes cannot be retrieved this way.

I cannot find the TSB for doing this "Requesting vehicle security codes" on RennTech. I was wondering if it is possible for me to get and submit this form to Porsche or whether I will have to go through the dealer. And if the latter is my only option, I wonder if anyone knows what the dealer would typically charge.

Todd,

I was also interested in getting the amp plugs so I did some research from the manufacturer part numbers for the connectors (not the Porsche part numbers). I found the data sheet and at least one place that sells them. I haven't ordered them yet and I am on the road now so I don't have the information handy. But I can send it to you when I get back home later this week.

FYI, after inspecting the bushing I believe that it can be rebuilt using flexane 94 because it degrades similarly to the motor mount (rubber eventually dries and cracks under stress). I am going to attempt this at some point.

I had the same problem. I initially made the problem go away by bending the metal so that the heat shield didn't have space to rattle. But it eventualy found a way to rattle again. So I removed the shields from both sides and replaced them with cloth heat wrap. I will never have that problem again and the exhaust is probably better insulated than stock.

In case you didn't already tackle this, here is a link with pictures

http://www.ppbb.com/boards/ppbbphp/showfla...;Number=1111775

Oh wow chris your winning me with your mileage, 'normally $4,000'? i got a quote for $6K and i thought that was cheap! (i know you paid $1800 which is just unbelievable - i would do it RIGHT NOW if it was only $1800!)

Group buy on Ocean Blue repaint jobs? :)

I would start by clearing the front drains. They are located under the front hood. You have to remove the plastic panels next to the battery and blow out the drains (easy to do - one screw on each side). Stuff gets lodged in the drains and you have to periodically blow them out.

I think there is a strap on the inside that holds the top in place. It has come apart on my 1999 Boxster.

Sure you're not looking at the windshield washer reservoir? :)

I'm guessing the previous owner mixed two different color coolants. I'm not sure what combination would yield blue though.

Wow, $13k for a door. That hardly seems possible.

I park in NYC on the street all the time too. Never any problems.

More clues here from the RemoteTop installation instructions:

https://www.wilhelmy-it.de/sms/db/smarttop/...6/en.php?mode=1

It looks like they do indeed intercept signals going in and out of the alarm control module.

Yup, now you've started it. For the record, the Ideal Gas law is for ideal conditions. Inside a tire is not even close and the gasses behave only very approximately to that formula. Snowball on...