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New 04 TTS owner few questions especiall a RINSPEED CPU


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Hi, guys long term member here been in the 996 for almost 10 years,, just brought a 04 TTS with 56k on the clock, for 35000 out the door with tax and lic. every thing checks out okay, comes with 22inch rims fully loaded with carbon fiber interior , pcm etc etc.

few things that bugs me hope you guys can help out....

The Fuel release button and tailgate button do not work, (basically the whole control don't work)... I assume its a fuse? somebody poped the door panel and forgot to put the plug in?...

before I go ahead and try to open open the door panel and look is there any one that can give me heads up on what is the most common problem that causes this.

2nd thing, most mind bugging, I have been thinking to flash it with a APR ever since I got it, (for 2 days?) because its not as fast as my lightly modded BMW 335i putting 400whp ( I know its doubles the weight ALMOST)... long story short.,! I opened the rear panel where the ECU is... shocked!... there is a extra module that has wires spiced in to the ecu saying RINSPEED on it.. I try to look it up online but can't find any information about it... Is this a rinspeed lowering module? or is is a piggy back ecu?.... I do not have any information on it., nor how to operate it...

3nd thing, the PCM do not read the navi disc at all, it seems like the lens is dead or something.,,. what are my choices? ( I am tech savy, I have been modding my friends and my ps2 for many years so if there is a fix for it I will easily be able to perform myself.)

thanks in advance

Edited by mtimmy
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  • 1 year later...

That is odd, I discovered the same 'Rinspeed'-labeled box wired to my ecu the other day! I know it's been awhile since your original post, but did you ever find out what this unit is/does? A google search brought me here, great website =)

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It is the lowering unit to lower your air suspension,! I was trying to figure out how to set them with the two varaible resistor knob that is on the control unit, however rinspeed is not helpful neither of their dealer

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