Any one made a conversion to boxster 2.5 1999 swapping to a 3.2 2001

[twanny]

Hi what did you do to the ecu and I used a 3.4 throttle body 

[JFP in PA]

2 hours ago, twanny said:

Hi what did you do to the ecu and I used a 3.4 throttle body 

 

You are going to need to use the 7.2 DME for the 3.2 engine, which may also require you switch to a later dash cluster as well, as the 2001 was already using CAN Bus technology.

[twanny]

Thanks for your reply what is it dash cluster

[JFP in PA]

4 minutes ago, twanny said:

Thanks for your reply what is it dash cluster

 

[twanny]

14 hours ago, JFP in PA said:

 

 

[twanny]

Good morning I can’t find any one here to download load the 7.2 DME on my Ecu

[JFP in PA]

7 hours ago, twanny said:

Good morning I can’t find any one here to download load the 7.2 DME on my Ecu

 

I don't believe that is possible, the two DME's are physically different.

[Loren]

1 hour ago, JFP in PA said:

 

I don't believe that is possible, the two DME's are physically different.

 

JFP is correct - physically different - including pinouts and connectors..

[twanny]

So what is your recommendation to do

thanks both of you 

[JFP in PA]

25 minutes ago, twanny said:

So what is your recommendation to do

thanks both of you 

 

The swap you are attempting is complicated; your 1999 car has a mechanical throttle, the 3.2 is an electronic throttle, the 3.2 uses different sensors and sensor communication protocols, if you have the factory alarm in the 99, it will not recognize the 7.2 DME, etc.  You will need the 7.2 DME, the entire wiring harness from a 3.2 donor car, the throttle pedal assembly, and you will be doing some creative wiring to tie it all together.  Your cooling system hard lines from the engine to the front of the car are a different size than the 3.2 uses, so you will need to either fabricate adaptors, or source the 3.2 hard lines, it also need the addition of the third forward radiator. Then you will need access to either a factory PST II or PIWIS computer to get your car to recognize the DME and visa versa.

 

It is all doable, but it is also a lot of work.  Good luck.

[twanny]

Thanks again for your time 

[twanny]

6 hours ago, JFP in PA said:

 

The swap you are attempting is complicated; your 1999 car has a mechanical throttle, the 3.2 is an electronic throttle, the 3.2 uses different sensors and sensor communication protocols, if you have the factory alarm in the 99, it will not recognize the 7.2 DME, etc.  You will need the 7.2 DME, the entire wiring harness from a 3.2 donor car, the throttle pedal assembly, and you will be doing some creative wiring to tie it all together.  Your cooling system hard lines from the engine to the front of the car are a different size than the 3.2 uses, so you will need to either fabricate adaptors, or source the 3.2 hard lines, it also need the addition of the third forward radiator. Then you will need access to either a factory PST II or PIWIS computer to get your car to recognize the DME and visa versa.

 

It is all doable, but it is also a lot of work.  Good luck.

 

[twanny]

Hi someone told me to an ecu from a 1999 Carrera is it true thanks 

[JFP in PA]

1 minute ago, twanny said:

Hi someone told me to an ecu from a 1999 Carrera is it true thanks 

 

No, a 1999 996 would carry the 5.2.2 DME.

[twanny]

This is what he told me 

You should use the ECU for the 1999 Carrera engine, not the one you have. 
 

[JFP in PA]

4 minutes ago, twanny said:

This is what he told me 

You should use the ECU for the 1999 Carrera engine, not the one you have. 
 

 

The 1999 996 Carrara would carry a 5.2.2 DME, not a 7.2.  A 2000 would carry the 7.2 DME, but again would be subject to the issues mentioned earlier.  You cannot simply swap DME's.

 

 

[twanny]

Just now, JFP in PA said:

 

No, a 1999 996 would carry the 5.2.2 DME.

? I don’t know what am going to do then thanks 

[twanny]

6 hours ago, JFP in PA said:

 

The swap you are attempting is complicated; your 1999 car has a mechanical throttle, the 3.2 is an electronic throttle, the 3.2 uses different sensors and sensor communication protocols, if you have the factory alarm in the 99, it will not recognize the 7.2 DME, etc.  You will need the 7.2 DME, the entire wiring harness from a 3.2 donor car, the throttle pedal assembly, and you will be doing some creative wiring to tie it all together.  Your cooling system hard lines from the engine to the front of the car are a different size than the 3.2 uses, so you will need to either fabricate adaptors, or source the 3.2 hard lines, it also need the addition of the third forward radiator. Then you will need access to either a factory PST II or PIWIS computer to get your car to recognize the DME and visa versa.

 

It is all doable, but it is also a lot of work.  Good luck.

Am using a 3.4 throttle body it’s not machanical 

[Loren]

1 hour ago, twanny said:

Am using a 3.4 throttle body it’s not machanical 

 

It depends. If the throttle body came from a 199 996 then it would be mechanical (cable driven). But that was the last year.

[twanny]

Yes throttle body came from a 1999 996

[twanny]

Hi Can someone help me where can I switch a 1999 996 ecu key immobilizer Europe or uk 

thanks

Edited December 17, 2018 by twanny

[RFM]

Your 99 electronic throttle body is most likely from a C4, these were already electronic in 99.

 

[twanny]

On 12/17/2018 at 9:08 AM, twanny said:

 

Yes it was Removed from a 1999 Porsche 911 Carrera Coupe 

[twanny]

On 12/17/2018 at 9:08 AM, twanny said:

 

Yes it was Removed from a 1999 Porsche 911 Carrera Coupe and it’s not electronic