Green temp sender, is it a preventative measure?

adam cupra 20vt

Built Not Bought.
Mar 31, 2005
6,162
2
Mud Hut
Yes that says it measures coolant temp and sends signal to the ECU, thats what I just said.

I fail to see how using a non OEM temp sensor will reduce the life span of my engine :confused:

If a OEM one is faulty then its faulty......if a non OEM one is faulty then its no different.
 

LEE69

Stage 2 Revo'd
Dec 10, 2004
21,262
74
C\UK\Devon\Torquay
Yes a faulty sensor can cause over fuelling, bad starting from hot and cold too.
The sensor as two sides to it, i have no idea which is which.
I know the dash gauge shoots up far quicker than the other readings.
 

Mark300zx

Active Member
Apr 24, 2008
1,458
8
Surrey/SW London
The problems I have outlined are blatant in your face problems, to maybe make a point.

But let us say your ebay temp sender doesn't send an accurate signal when it overheats, the ecu reacts too late and then there is engine damage, the initial saving on the initial purchase price is then irrelelvant. Let us say it takes one more minute to show the engine being fully warmed up, this means it will less fuel efficient and you will easily lose the money saved by bad fuel economy.

VW had a problem with their original installation, they acknowledged that and offered a superior product that has to meet manufacturing spec to work with their engines and be quality assured, you really don't know that about your ebay product.

There are many things I would buy from ebay or as a patent part, but a temp sender isn't one of them.
 

adam cupra 20vt

Built Not Bought.
Mar 31, 2005
6,162
2
Mud Hut
Its not the ebay ones people are having problems with tho its the Original ones from Seat.

No one is saying they have had problems with the green one, in fact people are saying there good and work well.

If a sensor is faulty its faulty weather its OEM or not.

I think were all going to have to agree to disagree on this one :D
 

LEE69

Stage 2 Revo'd
Dec 10, 2004
21,262
74
C\UK\Devon\Torquay
The ebay sender is probably sold by every motor factors up and down the country.
Your happy to not use one, me and others will be.
Mine is operating as a genuine should be.
 

AwesomeSarah

Forum Sponsor
Mar 6, 2006
727
0
Wow guys......
But to throw a spanner in the works , I dont think that VAG make their own sensors
So I wonder who does :rubchin:
Then if the manufacturer sells them....I am sure the quality will be the same?
Sarah
 

Muttley

Catch that diesel!
Mar 17, 2006
4,987
31
North Kent
You should be aware that the sensor package, wherever you get it from and whatever its colour, has two completely separate sensors contained in it. One feeds the ECU, from where the Climatronic unit gets its signal, and the other goes directly to the dash gauge.

My guess is that the dash gauge needs a different type of sensor, as it is an analog meter.

The ECU converts the reading from its sensor into a digital signal, which is passed over the data bus to things like the Climatronic unit.

This means that the dash gauge is just a tell-tale, giving you a warning of fault conditions, and that failure of the dash gauge or its feed does not mean that the engine is getting bad data.
 

LEE69

Stage 2 Revo'd
Dec 10, 2004
21,262
74
C\UK\Devon\Torquay
You should be aware that the sensor package, wherever you get it from and whatever its colour, has two completely separate sensors contained in it. One feeds the ECU, from where the Climatronic unit gets its signal, and the other goes directly to the dash gauge.

My guess is that the dash gauge needs a different type of sensor, as it is an analog meter.

The dash is off the CTS too, all electronic after all (cured my dash gauge problem too)
So the ECU sends the info to the Climate control, Thanks :)
 

Muttley

Catch that diesel!
Mar 17, 2006
4,987
31
North Kent
LEE69 wrote

The dash is off the CTS too, all electronic after all (cured my dash gauge problem too)

Yes, but I think you missed my point:

One component, the coolant temperature sensor.
Two completely separate sensor elements within that component.
One electrical connector with four blades, two per sensor.
So the dash gauge can fail without any effect on the ECU signal.

I'm not sure the dash gauge is electronic, it may be simply electrical, a voltmeter measuring the voltage drop across the sensor with no ananlog-to-digital conversion. Sensors are always analog, and the dash dial is analog as well.

So the ECU sends the info to the Climate control, Thanks :)
 

LEE69

Stage 2 Revo'd
Dec 10, 2004
21,262
74
C\UK\Devon\Torquay
Yes, but I think you missed my point:

One component, the coolant temperature sensor.
Two completely separate sensor elements within that component.
One electrical connector with four blades, two per sensor.
So the dash gauge can fail without any effect on the ECU signal.

Yeah i'm aware of that ;)

I'm not sure the dash gauge is electronic, it may be simply electrical, a voltmeter measuring the voltage drop across the sensor with no ananlog-to-digital conversion. Sensors are always analog, and the dash dial is analog as well.
Thanks :)
 
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