High voltage reading TPS

[brookfromhamilton]

Long story short.

The wires going into my TPS are reading around 11.45v. This is with the sensor unplugged. Shouldnt it be no more than 5.0v?

Doing my head in, why's it reading so high?

Passat b3 16v 2.0L

Cheers

[Snail Style]

Fly-by-wire throttle right? There will be a battery voltage wire there to operate the motor Usually 2 thicker wires are for that.

[h100vw]

Fly-by-wire throttle right? There will be a battery voltage wire there to operate the motor Usually 2 thicker wires are for that.

It's a cable throttle mate.

What's the problem with the car? They are just switches, so the voltage doesn't matter.

[zei20t]

its possible its a 12v sensor, but outputs 0-5v.

[h100vw]

its possible its a 12v sensor, but outputs 0-5v.

They are just micro switches, the car is from the 90s

[zei20t]

all my 90s cars have had a TPS sensor.

if it IS a TPS then its a variable resistor and will have a voltage range.

look like any of these? https://www.google.com.au/search?q=v...w=1280&bih=633

[h100vw]

I have had a few of these Passats and I am pretty sure they only have switches that tell the ECU the throttle is wot or closed and nothing in between. The load sensing is done by the airflow meter flap position.

While your google pulls up a lot of picture with TPS visible, all the ones I looked at are from VWvortex which ran a different version of the engine. It is a 2 stage TB not a single plate like a recent TB has.

My 90s reference was maybe a bit of a sweeping statement, the technology in that car is ancient.

Hopefully the OP can tell us what he has

Gavin

all my 90s cars have had a TPS sensor.

if it IS a TPS then its a variable resistor and will have a voltage range.

look like any of these? https://www.google.com.au/search?q=v...w=1280&bih=633

[zei20t]

a picture says 1000 words

although us talking about it had already made that lol

[h100vw]

a picture says 1000 words

although us talking about it had already made that lol

I looked at ETKA and there are some with TPSs. Humble with custard?

[zei20t]

agree to disagree?

[Transporter]

I have had a few of these Passats and I am pretty sure they only have switches that tell the ECU the throttle is wot or closed and nothing in between. The load sensing is done by the airflow meter flap position.

While your google pulls up a lot of picture with TPS visible, all the ones I looked at are from VWvortex which ran a different version of the engine. It is a 2 stage TB not a single plate like a recent TB has.

My 90s reference was maybe a bit of a sweeping statement, the technology in that car is ancient.

Hopefully the OP can tell us what he has

Gavin

You're absolutely right. Up to 1994 they had 3pins switch and from 1995 they had throttle valve control module with the 8pin connector.