External temperature sensor

[spyderman]

My external temperature display (PCM2 or in the on-board computer) always indicates way too high when the engine is hot, suggesting the sensor must be too near the engine and/or cooling system. Does anyone know where the sensor is and if its easily moveable?

 

[Richard_Hamilton]

It's here:

 

[Mark_Bennett]

maybe it's come out of it's mounting hole, and is sat against the radiator?

 

[spyderman]

Thanks - I'll investigate. It was saying 39 deg.C today - perhaps it was being ironic! []

 

[glewis]

I also drive a 550 Anniversary and my sensor came out of the mounting clip too. It's dead easy to out back in though.

 

[spyderman]

I can see the hole in the offside air intake where I think its supposed to go, but so far haven't seen the sensor yet.

Is your photo, Richard, of a 987? I don't have the metal grilles at all.

 

[spyderman]

Here's shot of my offside intake and I think the circular thing looks very much like that in Richard's shot. There's a wire pair on the right, but they seem to be very tight and certainly not flapping about.

 

[Rodney Naghar]

ORIGINAL: spyderman

I can see the hole in the offside air intake where I think its supposed to go, but so far haven't seen the sensor yet.

Is your photo, Richard, of a 987? I don't have the metal grilles at all.

Richard's photo is of the front of his old 996 to which he added the front mesh/grills to stop stone damage to the rads.

The circular thing in your photo is the temperature sensor holder, to which the sensor clicks in from behind. It looks like your sensor has broken off and all that's left are the wires that used to attach to it.

 

[spyderman]

Those grilles are a very good idea - would keep wildlife out too!

The sensor does read something, and it does change, so I'm hoping its still in there somewhere! Just have to find it...

 

[jcorallo]

Since you say the wires are tight and not flapping about.... maybe the front bumper has been taken off at some point and on re-installation, the sensor has become trapped between the body and bumper, at the lower edge.

So would just be a case of un-trapping it.

Jules

 

[spyderman]

I think you're exactly right, Jules. The wires come through a rubber grommet and following them down, dive off under the very bottom lip of the spoiler. I think its going to have to be a warranty job since I have no idea how to get the bumper off - or if I want to risk trying!

Thanks, folks.

 

[Mark_Bennett]

It's easy actually:

http://www.realtime.net/~rentner/Porsche/Radiator/Radiator.html

 

[spyderman]

Thanks, Mark. Interesting to see the photos with the sensor. Whoever last had my front end apart must have really yanked on the wire as its very taught - shoving my hand in the hole, I can't even feel the cable end of the sensor. If the two horizontal louvres came out, I might stand a chance of finding and releasing the sensor.

Grovelling around under there, I notice that the underside of the front spoiler is quite badly damaged where someone has run up a curb with it (I guess).