Throttle Positon Sensor for data logging
#1
Intermediate
Thread Starter
Throttle Positon Sensor for data logging
I'm looking for a TPS - Throttle Position Sensor for my data logger. And found that TIP-cars might have this. According to PET part no 964 606 115 00 is a throttle-walve switch. I can't understand the need for just another switch, there is already a WOT switch and an idle switch, so I was hoping that this part actually is a position sensor. Looking at the wiring diagrams, it seems the same part is called a Throttle Valve Potentiometer (sheet 5, coordinates C 50).
Can anyone on here confirm this ?
Will this part fit my non TIP engine ? or is the shaft of the throttle valve somewhat different ...
If anybody has tips on other TPS sources on the net I'd appreciate it.
Can anyone on here confirm this ?
Will this part fit my non TIP engine ? or is the shaft of the throttle valve somewhat different ...
If anybody has tips on other TPS sources on the net I'd appreciate it.
#3
I've got a Race Technology DL1 data logger and alos want to log throttle position - RT sell a couple of sensors that could be used, a linear one that could be used on the throttle peddle, or a rotational pot for the throttle itself. As yet I don't know if/how to fit one of these - http://www.race-technology.com/conte...?pcat=2&cat=34
#4
Intermediate
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As yet I don't know if/how to fit one of these - http://www.race-technology.com/conte...?pcat=2&cat=34
#5
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If you do a search using "TPS" as a search term, you'll find more info. Here's a link to the AiM potentiometer a number of my track friends use on their manual 964's.
http://www.aim-sportline.com/downloa...ot_eng_101.pdf
In one discussion thread, Geoffrey metions that You can replace the TPS with one from a 944 Turbo which has both. Some rewiring will be required, but you'll be able to provide the Motronics ECU with the binary switch information and your data logging system can use the linear potentiometer.
Unfortunately, there does not appear to be a simple solution.
http://www.aim-sportline.com/downloa...ot_eng_101.pdf
In one discussion thread, Geoffrey metions that You can replace the TPS with one from a 944 Turbo which has both. Some rewiring will be required, but you'll be able to provide the Motronics ECU with the binary switch information and your data logging system can use the linear potentiometer.
Unfortunately, there does not appear to be a simple solution.
#7
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The stock 964 manual has a throttle idle contact switch and a full throttle contact switch, both are normally open/close when actuated and work off the plastic cam on the end of the throttle body shaft. The main shaft is 8mm diameter, unfortunately the cam is fitted on a reduced diameter section so there is no provision for a conventional D drive.
The tiptronic 964 and the 993 non-varioram have a throttle position sensor which is a variable resistance (providing the ecu with a 0-5V (well, more like 0.3V to 4.5V) signal from idle to flat out). The sensor used on these throttle bodies fits on the usual 8mm D drive.
Unfortunately you can't easily convert your manual ecu to run on a TPS rather than the switches and neither is it easy to fit a 8mm D drive TPS to the manual throttle body, so in a nutshell you have no choice but to fit a secondary sensor to the throttle linkage, cable or pedal.
The tiptronic 964 and the 993 non-varioram have a throttle position sensor which is a variable resistance (providing the ecu with a 0-5V (well, more like 0.3V to 4.5V) signal from idle to flat out). The sensor used on these throttle bodies fits on the usual 8mm D drive.
Unfortunately you can't easily convert your manual ecu to run on a TPS rather than the switches and neither is it easy to fit a 8mm D drive TPS to the manual throttle body, so in a nutshell you have no choice but to fit a secondary sensor to the throttle linkage, cable or pedal.
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#8
Intermediate
Thread Starter
Thanks Collin, I didnt notice the different part numbers on the throttle bodies untill now. I was hoping for an easy fix, but I know they rearly exist
It would be nice to know what strategies your friends have chosen, pedal cluster or linkage somewhere close to the throttle body ? Maybe asking alot, but a pic of the sensor installed would be really nice
If you do a search using "TPS" as a search term, you'll find more info. Here's a link to the AiM potentiometer a number of my track friends use on their manual 964's.
http://www.aim-sportline.com/downloa...ot_eng_101.pdf
http://www.aim-sportline.com/downloa...ot_eng_101.pdf
#10
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The additional sensor was located on the linkage next to the throttle body and the wire exited the engine compartment through the same port as the O2 sensor. Sorry I can't be more specific.
#12
Intermediate
Thread Starter
Thank you so much !
But, is this a string pot ?? (similar to this one: http://www.race-technology.com/strin...ring_2_59.html)
But, is this a string pot ?? (similar to this one: http://www.race-technology.com/strin...ring_2_59.html)