Link Dual output TPS not working for DBW

[HuxRacing]

I have the Link ECU dual output TPS Sensor installed but i do not get full range out of the "sub" channel . If i set the TPS sensor so the "main" voltage is about .27v ( which is near the low limit of .24V), The sub channel will start around 1.05v and botom out at .24v well before full throttle. I then get a sub voltage error when calibrating the dbw tps. Any idea what is wrong with my TPS or a better dual output TPS to run?

[Adamw]

That almost sounds like it is rotated past its range of travel.  Is the flat lined up somewhere close to parallel with the bolt hole centers like pic below?

[HuxRacing]

Here is a pic of what I am seeing. The link tps might have 2 outputs but they are not intended to be used as a true dual output device. The 2 signals only overlap for about 15 degrees. The signal is bottomed out once you pass the range on either end. 

[Confused]

I think you're getting confused.

It's a universal sensor for CW or CCW installation to a traditional cable driven throttle body which only rotates 90 degrees, not as a twin output sensor for use with E-Throttle.

[HuxRacing]

I wish that was the case but they advertise this for DBW use as it has 2 outputs. 

[Confused]

Who do?

Because what I see on the Link pages don't indicate that.

Also Adam's reply above also indicates that maybe that's not the case too.

[HuxRacing]

Adam was the guy who recommended it for my application. This same sensor is sold by numerous vendors and just rebadged.

"The only advice I would suggest if you go for the S54 one is dont use the "TPS" sensor that is on the motor, fit a dual track sensor on the ITB's and use that for both sub and main TP instead.  Having the one on the motor is a ball ache to make work as the linkage ratio is rarely linear.  Link sell a nice universal dual track hall effect TPS.  "

 

[Adamw]

Sorry, it looks like I might have steered you wrong there.  I just had a look at the one on my car and it is a slightly different part number than the Link one, I got it from another company I was working for at the time and I assumed we both sold the same one.  2832-811-214-911-00 is what I have.    The Link one is 2832-812-214-911-00.

It is strange the manufacturers data sheet suggests the only difference between these 2 part numbers is 110deg Vs 120deg electrical angle and shows the center of the electrical range is with the flat aligned with the cable for both outputs but that looks wrong according to your drawing.  I can say for sure on my one the 2 outputs are exactly opposite to each other over the same angle.  

 

 

[HuxRacing]

Adam, 

Thanks for the clarification. I think I am going to convert to a simple gm DBW actuator with dual tps output.

[HuxRacing]

Adam,

I discovered that what the part number does not tell you is the start and end angle value of the 2 patterns. I have sourced a custom version of the same sensor with the correct 2 patterns on the same 110 degree sweep. 

[Adamw]

9 minutes ago, HuxRacing said:

I discovered that what the part number does not tell you is the start and end angle value of the 2 patterns.

Yeah but the datasheet shows the "electrical angle mid point" is centered on the cable centerline which is obviously wrong for this particular sensor.