Contactless throttle position sensor 34370022 for VW, Audi, Peugeot,Fiat, Citroen, Lancia
Once you will install this TPS on your vehicle, you will get:
-Increased reliability of throttle
-Stable idle speed
-Accurately and precisely throttle response
Also you will forever forget about Bosch’s and chinese copy sensor’s track wear, because our sensor doesen’t have any wearing parts.
Hello folks !
I have designed this kit to replace 4-pin( manual transaxle) and 7-pin( automatic transaxle)
Throttle Position Sensors
Bosch 3 437 022
Bosch 3 437 022 512
Bosch 3 437 022 900
And their analogues
which was factory installed on Mono Motronic and Mono Jetronic systems on 1980-199X VW, AUDI, Fiat, Citroen, Peugeot, Lancia etc.
And this contactless TPS does not deteriorate like Bosh’s TPS
Here you can see Bosh’s TPS track deterioration over the years
Also this contactless TPS will perfectly works on a throttle with a damaged or broken brushes like this
Ohh! Man, are you kidding me?
How it could be possible and how it could work without contact-brushes?
This was a first questions of one of mine friend , when he saw my new TPS at first time.
No, i am not kidding! 🙂
Contactless sensor is real, all we need is to install bushing with magnet on throttle spindle.
The principle of operation of this TPS Converter is based on measuring the angular position of the magnetic field of the magnet which is mounted on the throttle shaft.
Onboard Hall sensor measures the rotation of the magnetic field (and accordingly the rotation of the throttle axis) in space in degrees and transmits this value to the MCU which converts the measured value of the throttle angle into an electrical signals.
The characteristics of this signals are absolutely identical to the signals of the Bosch sensor 3 437 022.
It has onboard protection from overvoltage, reverse polarity and short circuits.
There are no difficulties with installation and everything is quite simple.
Here is an example of installation on bottom part of MonoMotronic injection unit
How can i tune it?
You can use bluetooth module to calibrate, tune and diagnose it with a special software
(for more details look at Complete installation manual tab upper)
Complete video tutorial
The main problem of tuning genuine Bosh or chinese tps is to tune it properly.
You culdn’t rotate it by hands precisely.
With “TPS tuner” software you can tune this TPS precisely and you dont need to rotate it by hands phisically.
Just press calibration button to setup initial position and move slider to virtualy rotate TPS. You can virtualy rotate it in resolution of 0.1 of degrees, you culdn’t achieve this resolution if you will rotate TPS by your hands.
Order contactless 3437022 TPS right now and forget about the tracks wear forever.
If you have any additional questions, doubts or suggestions please write a comment in the “discussion” tab 🙂
P.S. Also we can develop similar contactless sensors for other brands of cars and motorcycles.
Proposals on this issue should be sent to the support team ( see e-mail at the bottom of “How to order” page).
Complete installation manual
Installation of the new TPS on the throttle body
Here is a simplified video tutorial about installation of this sensor
Pinout of TPS and wires connection
Here is a pinout : 1– Output signal as track #1 on genuine TPS 2– Output signal as track #2 on genuine TPS AT-Output signal for automatic transaxle ECU O2/REF – Input signal of reference voltage 5V or oxygen sensor signal ( for test ) GND – ground 12V – supply voltage
Ok. Now lets look at the connection diagrams
On the schematic above you can see TPS with blue wago type connector, dont worry about it – it was on previous version. But for clear connection view this picture will be the best, because pinout is same .
Ok . Depending on transaxle type , there culd be two differet TPS connectors and corresponding connection diagrams( see pic above).
To find numeration of pins of genuine connector all you need is to turn inginion on and find reference voltage(5v) with a multimeter.
If you have questions – feel free to ask in discussion tab.
For supply voltage we need additional wire 12V .
As 12V not presents on genuine connector, we can take it directly form battery’s positive terminal via fuse 1-3A ( not included in kit – you can buy it at any local autoparts store). The fuse should be installed as close as possible to the battery to protect TPS’s supply line properly.
To connect new connector to vehicle wiring you can use:
-Butt connecor like this
-scotchlok splices like this
You can cut genuine TPS connector from vehicle’s wiring and install new one included in kit. And from other new one and old genuine connector you can make an adapter for genuine TPS and with this solution you can connect both TPSs to vehicle wiring as you wish and as you need.
How to install a bluetooth module in the socket of the sensor
During installtion please check marking on bluetooth and tps:
5v-5v, gnd-gnd, rx-tx,tx-rx
Also you can very precisely tune the TPS and it will work exactly as the manufacturer of your car conceived.
Before you will make this , you should check:
1. Oxygen sensor. It must be 100% working.
2. Rubber mounting of the throttle body. It must be not damaged and there must be no vacuum leaks. 3. Intake air warmup system should be working and intake air temperature should be in a range of 30-40 Celsius degrees
If all above checked and works perfectly, run VAG COM , VAG Tool or Monoscan software, reset adaptations of ECU ( on some models you need just disconnect battery terminal for a couple minutes).
Now start engine and drive your vehicle for a couple kilometers and check mixture correction( or Long term fuel trim).
Mixture correction should be +/-8% in ideal. If it is out of range, then virtualy rotate the TPS to enrich or enlean a mixture (0.5-1 degrees is enough and don’t forget to store virtual angle to EEPROM of TPS), drive a couple of kilometers and check again -make corrections if needed while mixture correction not achieve +/-8% range.
Also you can make this tuning at stopped vehicle at 3000 rpm, but in this case you will need to wait at this RPM (3-5 min) while ECU learns a new mixture correction.
Thats all! Enjoy how it works 🙂
p.s. After all tunings done it will be good to remove bluetooth module and apply an automotive sealant on the connector to protect it from moisture.
Anton’s TPS has an onboard protection from reverse polarity and overvoltage
Supply voltage 6-16V
Operating temterature range -40 to +110 С
Neodum Magnet H class (operating temperature up to +120С)
Autotunig and firmware update functions provides you simple installation, tuning and upgrade is nessesary
The PCB of our converter is varnished to protect it from moisture and reagents
1. Why there is a difference in the diameter of available bushing with magnet , and which one should i order?
It is very simple – it depends on engine’s volume , because there installed different throttle bodies.
Engines with displacement 1.8 and 2.0 liters has throttle body with a throttle spindle diameter 5mm:
And engines with displacement 1.4 and 1.6 liters has throttle body with a throttle spindle diameter 8mm:
To make right choice you need to know your engine displacement, or remove genuine TPS and check throttle spindle diameter 🙂
2. What if spindle brushing is totally damaged? As your TPS is contactless, I wonder whether it was functioning to my damaged spindle.
In this case our TPS will perfectly works. See pictures above with damaged brushing – now it is not a problem at all.