Richard Hamilton

If you buy a new DME it will come with the DME Programming code set to 00000000. When you start programming it, it will ask you to confirm the "old" code (00000000) and then enter a "new" code (the Programming code from your existing DME). Then you have to enter the Immobiliser Code from your IPAS codes, and then set the correct parameters for your car in the Coding section (cruise, country, etc). Finally, program the fuel map. Once you have done this, you will have two interchangeable DMEs.

Drop me a PM with your email address.

But a 1999 DME/Alarm combo won't be any good for a 3.6 Variocam Plus engine.

The '99 and '02 DMEs are incompatible. There are substantial differences between '99 and '02, not the least of which are the introduction of eGas and Variocam Plus. The car will need a substantial amount of re-wiring in order to get it to run.

Unless you have the IPAS codes for the DME and Alarm/Immobiliser, and also if they are not the correct type, they will be useless to you, as they can't be reprogrammed without the codes.

It is ignition-switched, so a useful source of switched power in the front compartment.

I think you'll find all models from the 986 onwards have heated washer jets.

Could it be a connector for one of the heated screen washer jets?

There is a glass fuse INSIDE the CD changer, which seems prone to blowing if jump started. Worth checking, but you have to remove the changer, and take off the cover. When the fuse blows, it stops the signals flowing through the CDC and amp. The navigation is built in to the headunit, which is why it is still working.

Also, you should jump start a 996 using the connections in the engine compartment, as described in the owners manual.

The orange case contains a fold-up warning triangle. Compulsory in most of Europe, so Porsche include it in the kit.

The plastic bag contains a pair of disposable polythene gloves, and a large poly bag to wrap a wheel in, to protect the interior of the car if you have to put it inside.

I don't think it does on the C4. There would be no room for the pump. The jack comes in a fabric bag to stop it rattling around. Also, the collapsible spare is a smaller diameter wheel, and I don't think the foam part for the inflated donut spare will fit.

Here is a photo of the spare and tool kit from my Turbo, which is the same as a C4. The spare is bolted to the floor of the trunk with the thumbscrew and washer you can see, and everything else is laid into the wheel. Sorry I don't have one of it all in the compartment.

EU3 does use all four lambda sensors on the 996T. You may be confusing it with the early 996's (DME5.2.2) which didn't have post-cat lambdas on the RoW cars. (They weren't OBD2 compliant).

Thease are the options you have for a 996T with the PST2 or PIWIS:

(Taken from POSES).

Perhaps your Clarion is being affected by the speed signal wire at the power plug. Try disconnecting the grey/pink speed wire from the black power plug.

"The DME programming code and immobilizer code are required to program control modules". That means you need the IPAS codes for the used DME as well as your own.

As Loren says, the last two digits are just a revision number.

Check the 996 numbers, as there seems to be a difference in the 3rd group of numbers. 151 and 051. 151 being the retrofit item, and 051 being the standard module.

Seems it is still available, but.......................$377! I don't know exactly what id does, but somewhat expensive to find out.

IIRC the proper Litronic retrofit kit had a small control module with it. Maybe check out the fitting instructions in the TSB section to see if that gives any clues about setting up the system.

I don't recognise that number, but the important thing about updating PCM2.1 is knowing which operating system software versions you have. From there, you can work out which update(s) you need. Take a look here: http://www.renntech.org/forums/tutorials/article/268-summary-of-pcm21-updates/

Surely you don't need satnav for Jersey? ;o)

I'll drop you a PM.

Park it in the open with the unit switched on. It will take a good 20 minutes for the system to build its GPS data from the satellites.

The antenna is on an aluminium panel underneath the plastic panel in the front compartment in front of the windscreen. I would start with where the cable plugs in to the navigation drive in the front trunk.

If the amp is working, I wouldn't be too worried about the warning triangle - it won't be causing your navigation problem. You wouldn't be the first to get the triangle with no apparent fault.

In one of the navigation screens (I can't recall which one at the moment) it displays the number of satellites seen by the navigation. Check to see if it is reading any. If not, it may be a bad connection to the GPS antenna.

First off though, try a system reset. With the PCM switched on, press the 1, 4, and 8 buttons at the same time. It will reboot the system.

Sorry, I forgot to say that if you got a used DME, you would need to get the IPAS codes for the donor vehicle.

As Loren says, you couldn't transfer the Promotive map to the PST2. I have no experience of flashing 3rd party maps (I have only used PST2/PIWIS for factory maps) but I would have thought a cheap Gemalto-type interface and suitable software could be used to transfer the Promotive map backwards and forwards.

Silver_TT makes sense - contact Promotive and see if they can provide a map which is fit for purpose. I also feel the same way as JFP. I'm not a lover of these generic maps. Personally, I would only consider having a car mapped live on a rolling road by someone who reaaly knows what they are doing. Plenty of people can give you more power and torque, but there must be compromises and removal of safety factors. Just my 2c's worth.

I like the flash from Protomotive. Can I buy a unsed DME and flash that unit to stock so I can get passed Mass Inspection time ? I think I need DME code (PST2) from Porsche for that used unit correct or does the tuner bypass it somehow ?

You need the DME Programming Code from Porsche to re-flash the DME back to standard with the PST2. The maps are all stored on the PST2. If you were going to buy a new or used DME, you would also need the Immobiliser Code from Porsche to enter that. Any DME Version 7.8 should be OK, from a 996 Carrera 3.6 or Turbo. You can change all the coding option to match your current DME. The only thing you won't be able to change is the recorded hours and mileage on a used DME.

Thanks Richard It doesn't work at all so I'll have a go at that. Do you have to remove the seat to get to the fuse or should I be able to see it with a bit of effort?

You should be able to get to it by putting the seat all the way up and all the way forward.