Search found 14 matches

by smolly
Sun Jun 15, 2008 10:30 am
Forum: Wiring and Sensors
Topic: Audi/VW ELTH CLT sensor calibration data
Replies: 5
Views: 795

Re: Audi/VW ELTH CLT sensor calibration data

For sure it's used in the 1.8 and 1.8T from Audi/VW. But probably also on some other VAG engines.
The big advantage is the standard place holder for the sensor and the re-use of the standard harness.
Nobody else taking use of these advantages with a similar engine?
by smolly
Tue May 20, 2008 10:22 am
Forum: Wiring and Sensors
Topic: Audi/VW ELTH CLT sensor calibration data
Replies: 5
Views: 795

Audi/VW ELTH CLT sensor calibration data

I am using the Audi/VW OEM CLT sensor, the ELTH 078 919 501 B.
Calibration has been done with some ice and boiling water. These where the result:
Temp, degC Resistance
0 - 5940
22 - 2300
100 - 200

Now my engine temp seems a bit high and I would like to be sure that the calibration figures are ...
by smolly
Sun Jan 06, 2008 9:27 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

FIdle question continued in seperate topic:
viewtopic.php?p=187261#187261
by smolly
Thu Dec 27, 2007 12:03 pm
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

Thx sofar, however question remains:
Is it possible to set a fixed DC between 0 and 40 degrees, instead of a lineary decrease with an increase of the CLT? so that the idleDC is x% till 40 degrees and 0% when higher CLT temps are reached.
by smolly
Sun Dec 16, 2007 5:19 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

Unfortunately these high PWM frequencies are not possible (with MS1 at least, I don't know for MS2).
The exact frequency is also a bit unclear, the window states 10000/x and the help screen (F1) states 1000/x.
But I noticed that with these low frequencies it is very hard to control the valve.
33 ...
by smolly
Sun Nov 25, 2007 4:35 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

Thx :D

So pwm with a frequency between 20-30 kHz. MS1 does not get higher then 10kHz, but it is worth a try.
by smolly
Sat Nov 24, 2007 12:37 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

vinister wrote:Isn't that a drive-by-wire throttle body?
No, its a cable TB and there is no idle control anywhere else on the engine.
That's why I expect that audi/vw is using the "motor" in the TB. But how?
by smolly
Fri Nov 23, 2007 11:27 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

I found this schema of the TB. Is this a stepper motor?
by smolly
Thu Nov 22, 2007 12:25 pm
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

Pin 1 & 2 are for the idle control, but how can MS control this?
by smolly
Tue Apr 03, 2007 9:32 pm
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

It opens about 5-10 degrees, I haven't got the engine running yet, so I am also curious what it would mean in rpms.
I also had the same idea about PWM, but left it behind me. I do not see the real purpose for it on my car. However I think it will work, Audi/VW is using it like this I would say.
by smolly
Mon Jan 29, 2007 1:46 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

For the next one who wants to use this throttle body,
the pinout is correct and working fine after calibration in Megatune.

thx for the responses :(
by smolly
Sun Jan 21, 2007 3:34 am
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

I have done some measurements with the following outcome:
1. actuator + (idle) ?
2. actuator - (idle) ?
3. closed = pin 7 / open = ∞
4. GND ?
5. TPS ? (0,6V closed / 4,3V full)
6. not connected
7. +5V ?
8. ?

Can someone pls. confirm!
by smolly
Thu Jan 18, 2007 1:10 pm
Forum: Wiring and Sensors
Topic: Audi 20vt TPS
Replies: 13
Views: 1315

Audi 20vt TPS

At the moment I am figuring out what OEM sensors I can re-use from Audi/VW.
And (sofar) the TPS seems to be the only mystery. It has 7 pins, too many combinations to try.
Who can tell me the pin description for this throttle body:

http://rush.smolly.nl/images/change4/throttle_1.jpg
http://rush ...