Air Tempurature Display under speedo... - 986 Forum - The Community for Porsche Boxster & Cayman Owners

CJ_Boxster · 08-25-2006, 12:38 PM

So, say i were to just have porsche activate the OBC...but not install the switch, Would the OBC display the outside air temp by default...i just wouldnt be able to scroll through other modes???? Would this be correct?

Quote:

Originally Posted by RandallNeighbour

I have a 97 as well and it depends on if your car was an early production model or a late production model. Mine was one of the first off the assembly line and there is no temp sensor in the front bumper. One must have a temp sensor to get the reading.

You can turn this feature on by asking your dealer to enable the OBC (On Board Computer). if you hook a switch up to your dash, you can also get other things on that part of the display such as miles per gallon, miles until empty, etc.

http://www.whiteson.org/boxster/mods/obc/

MNBoxster · 08-25-2006, 01:49 PM

Quote:

Originally Posted by CJ_Boxster

So, say i were to just have porsche activate the OBC...but not install the switch, Would the OBC display the outside air temp by default...i just wouldnt be able to scroll through other modes???? Would this be correct?

Hi,

Yes you are correct. If you have the Temp sender (and it sounds as if you do), then the Dealer can turn on the OBC and you'll get the outside temp and no other functions will be accessible or controllable without the combo switch w/ 4th stalk. Hope this helps...

Happy Motoring!... Jim'99

CJ_Boxster · 08-25-2006, 02:37 PM

They looked at the grill and i do have the sensor...production date of 7/97 for my 1997 Boxster.

They sent me home after waiting for 1 hour, The mechanic took my VIN# and emailed it to some porsche tech place and made a request for my Dash ID#, which he claims that he needs in order to make this work.

I have to take my car in on monday, by then the mechanic said he should have the Dash Cluster ID# from porsche and he can go ahead and activate the OBC for me.

Tool Pants · 08-25-2006, 03:26 PM

No clue what a dash cluster id number is. Has this guy ever turned on the OBD on another car?

It takes 5 minutes to turn it on with the PST2/PIWIS. You simply modify the instrument cluster coding to tell the cluster it has OBC, which then turns it on. The PST2/PIWIS simply tells the cluster it does or does not have the OBC. No id number is involved.

CJ_Boxster · 08-25-2006, 04:12 PM

Thanks for the info, i called the Mechanic and told him and he said Oh ok, well coin monday and ill do that for you...

Quote:

Originally Posted by Tool Pants

No clue what a dash cluster id number is. Has this guy ever turned on the OBD on another car?

It takes 5 minutes to turn it on with the PST2/PIWIS. You simply modify the instrument cluster coding to tell the cluster it has OBC, which then turns it on. The PST2/PIWIS simply tells the cluster it was or does not have the OBC. No id number is involved.

CJ_Boxster · 08-25-2006, 04:13 PM

Would i be able to do this myself with a odb2 scanner, i have this pretty little scanner that cost over $7k. I think its called a Solaris or something that sounds like Solar.

MNBoxster · 08-25-2006, 04:55 PM

Quote:

Originally Posted by CJ_Boxster

Would i be able to do this myself with a odb2 scanner, i have this pretty little scanner that cost over $7k. I think its called a Solaris or something that sounds like Solar.

Hi,

Sorry. Aside from Mandated OBDII Codes (which by law are accessible through aftermarket scanners), Porsche uses a proprietary software and code reader called the PST2 or PIWIS. They give you only what the Gov't mandates, but wants to wet the Dealer's beak for the rest...

Happy Motoring!... Jim'99