Auberins EGT fault

[brianwood]

Hi chaps,
I installed an Auberins EGT display and long EGT probe for my 300tdi. I have since travelled 3000km and it has all of a sudden started showing crazy readings, even with the engine turned off. Any ideas? Anyone else had this problem?
thanks
Brian

[dullbird]

Earth????

or loose connection

I have the long one and not had any dramas

[brianwood]

Thanks Dullbird. Just got a message back from Auber Ins and there is a check to do by shorting pin 6 & 7. Apparently this should read the ambient temp. It should indicate whether the guage or probe is faulty

[dullbird]

Any luck yet Brian?

[brianwood]

Sorry for the delay... We were in the process of moving from Tassie to Yeppoon, QLD. Anyway, I just ran the test and the guage reads correctly, which means the probe is faulty.
Got me to wondering Dullbird, did you have to bend your probe to line it up in the hole too? Hope this isnt what damaged it:o

[SiddersC]

I have the same set up,
If I remember correctly it is possible to bend the probe, BUT they are very fragile and have to be done correctly and gently, otherwise they will break.
I bought mine pre bent for this reason, and have had no problems.
I think that there is a section of wire that runs inside the stainless tube to the tip where it is exposed, if this is damaged it will provide incorrect or erratic readings.
Hope its something simple but it does sound like your probe.
Cheers

[brianwood]

Thanks SiddersC. It definately is the probe according to the test they got me to do. I only bent the probe gently near the collar assembly, so the tip should not be damaged. Here's hoping anyway... dont want to stuff another one.

[SiddersC]

Yeah, I don't think it takes much to damage them, you could try getting the shorter probe as a replacement.
I have the long probe on mine and it stcks out from the plate a fair bit, could probably get away with the shorter one?

[brianwood]

Apparently you need the full length inserted on the 300tdi to get in the gas flow, otherwise the readings are inaccurate. So I'll need to get the longer one...

[SiddersC]

Yeah, looked at mine again, I don't think the shorter probe would be long enough to get to the center of the airstream, once you have the mounting bung in place.

[dullbird]

Brian no bending of our probe as far as I'm aware..however i did buy the longer probe to make sure it got right in the middle of the gas flow

[brianwood]

Just a postscript to my dodgy EGT probe. The new probe arrived and upon inspection there is epoxy at the tip where the sensor is. The old one didn't have any (thus probably why it failed).
Again, I have put a 30deg bend in the probe to get into the gas stream. In fact, it wont bolt up if the probe is left straight, because the hole in the manifold goes up at an angle. Anyway, I'll see how this one lasts. Looking good at the moment and I was able to reseal the gasket to stop it leaking between the inspection plate and manifold.
Just remember I'm talking a 300tdi here which requires the special longer probe from Auber Instruments.

[discowhite]

yeppoon! its right next to ya fork:p have you herd that one yet??
i grew up in rocky and kepple sands, how things have changed.

anyway, i have auber gauge thats attached to a fuel pressure sendor in the TD5...so far im on my 3rd sendor from the supplier:mad:...me thinks its actually a MAP sensor and not one designed to take fuel and heat...
i might turn it into a boost gauge:eek:

cheers phil

[Redback]

If I remember correctly, when I installed mine it came with 2 sets of instructions, one for the TD5 and one for the 300Tdi, from memory if you had the long probe it needed to be bent before installing it, other wise it can touch and give incorrect readings.

Baz.

[brianwood]

yeppoon! its right next to ya fork:p have you herd that one yet??
i grew up in rocky and kepple sands, how things have changed.

anyway, i have auber gauge thats attached to a fuel pressure sendor in the TD5...so far im on my 3rd sendor from the supplier:mad:...me thinks its actually a MAP sensor and not one designed to take fuel and heat...
i might turn it into a boost gauge:eek:

cheers phil

Haha, yes heard that one a couple of months ago. We've only been here 4 weeks and love it.
I'm a little disappointed with Auber as I had to pay for a replacement probe, albeit a bit cheaper. Anyway, the strong Aussie dollar is on my side... Clearly they are having some quality control issues...:(