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996 tank pressure sensor wiring

sy786
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sy786 Member

sy786

Posted
Posted

my dealer has informed me that my engine check light is on due to a fault with the tank pressure sensor (part 996 606 20500)

Has anyone got any experience changing this part or have and pictures of the part or the change process?

Any help would be greatly appreciated.

Syed

1999 911 Cab

jamesgood72 Member

jamesgood72

Posted
Posted

Interesting. The check engine light recently came on in my 99 C2. Next time I filled up, it went off. It just came on again.

I wonder if that's something to do with it.

-James.

my dealer has informed me that my engine check light is on due to a fault with the tank pressure sensor (part 996 606 20500)

Has anyone got any experience changing this part or have and pictures of the part or the change process?

Any help would be greatly appreciated.

Syed

1999 911 Cab

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted
Interesting. The check engine light recently came on in my 99 C2. Next time I filled up, it went off. It just came on again.

I wonder if that's something to do with it.

-James.

my dealer has informed me that my engine check light is on due to a fault with the tank pressure sensor (part 996 606 20500)

Has anyone got any experience changing this part or have and pictures of the part or the change process?

Any help would be greatly appreciated.

Syed

1999 911 Cab

More likely your gas cap.

Check the o-ring on the gas cap.

  • Moderators
Tool Pants Member

Tool Pants

Posted
  • Moderators
Posted

At a work on cars day a 1999 996 owner showed up and replaced it. It is under the battery tray and held in place with a torx screw.

post-4-1218286830_thumb.jpg

post-4-1218286850_thumb.jpg

sy786 Member

sy786

Posted
  • Author
Posted
At a work on cars day a 1999 996 owner showed up and replaced it. It is under the battery tray and held in place with a torx screw.

thanks a lot. someone told me it was in the right wheel arch under the filler tube. this looks much easier.

Syed

sy786 Member

sy786

Posted
  • Author
Posted
Interesting. The check engine light recently came on in my 99 C2. Next time I filled up, it went off. It just came on again.

I wonder if that's something to do with it.

-James.

my dealer has informed me that my engine check light is on due to a fault with the tank pressure sensor (part 996 606 20500)

Has anyone got any experience changing this part or have and pictures of the part or the change process?

Any help would be greatly appreciated.

Syed

1999 911 Cab

More likely your gas cap.

Check the o-ring on the gas cap.

the gas cap looks ok. if i disconnect the battery the light goes of for a couple of hours then comes back on :(

Any other ideas?

Syed

sy786 Member

sy786

Posted
  • Author
Posted

Update,

opened her up and got to the tank presure sensor only to find the 3 wires going to the sensor are severed and their is no sign of the other end of the wires. looks like the wires have been pulled away... it is very strange.

I guess it is a trip to the dealer to get the sensor wired again.

ps . my dealer quoted me $500 for the sensor byt sunset porshe in oregon quoted me about half that.

Syed

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted
Update,

opened her up and got to the tank presure sensor only to find the 3 wires going to the sensor are severed and their is no sign of the other end of the wires. looks like the wires have been pulled away... it is very strange.

I guess it is a trip to the dealer to get the sensor wired again.

ps . my dealer quoted me $500 for the sensor byt sunset porshe in oregon quoted me about half that.

Syed

Mice?

(would not be the first time)

sy786 Member

sy786

Posted
  • Author
Posted (edited)
Update,

opened her up and got to the tank presure sensor only to find the 3 wires going to the sensor are severed and their is no sign of the other end of the wires. looks like the wires have been pulled away... it is very strange.

I guess it is a trip to the dealer to get the sensor wired again.

ps . my dealer quoted me $500 for the sensor byt sunset porshe in oregon quoted me about half that.

Syed

Mice?

(would not be the first time)

No obvious indications that the furry ones have been in there. the fact that the other ends of the wires are no where to be seen is also puzzling.

Syed

Edited by sy786
sy786 Member

sy786

Posted
  • Author
Posted

does anyone have any idea where the wiring for the tank pressure sensor runs on a 996. the sensor sits on top of the fuel tank, under the battery.

On my car the wires to the sensor have broken and I need to fish out the ends that connect to the computer. There is no sign of them near the sensor itself?

Thanks

Syed

1999 996 Cab

  • Admin
Loren Member

Loren

Posted
  • Admin
Posted
post-1-1218581603_thumb.png

Thanks Loren.

do you know where thes wires are going physically in the car?

Syed

To the DME:

Blue/Violet wire to DME pin 72 (differential pressure)

Brown/Pink to DME pin 34 (ground sensors)

Red/Violet to DME pin 53 (5V supply)

sy786 Member

sy786

Posted
  • Author
Posted
Merged.

thanks. sorry about that.

I found that the wiring for the sensor follows the same bundle as the fuel tank level wiring. it goes to the right of the fuel tank.

wiring repaired and engine check light no longer on :)

Syed

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