Cleaning up a mechanical VSS signal for the MPGuino

[stargazerf3a]

Thank you that is really kind

I am aware that this sensor exist but not on late clios and kangoos there is only a fake sensor to cover that hole and does not have cables and such.
When i first tried to hook up the mpguino i took the service manual and searched the pin that vss sensor hooks up to the ecu and guest what, nothing there just a little rubber cap. So i've downloaded an newer version of the so called Renault dialogys and read about this feature they did to newer versions to reduce the amount of cables and connectors and that is true, half of the pins on the ecu are not used. So i has thinking that i can install a real sensor to the gear box that will be used only by the mpguino and consoluino (for cruise control maybe).
But i can not say it is cheap...
SPEED SPEEDO SENSOR RENAULT CLIO SPORT 182 172 2.0 16v LAGUNA MEGANE SCENIC 1.9 | eBay

[razor02097]

Originally Posted by AndrzejM

If you have access to oscilloscope you may see what's the issue there. But if switch is bouncing that may cause ECU to work incorrectly. Maybe you should take a closer look at your VSS switch.

It is just a simple reed switch. I don't think the ECU is as sensitive to SB as the MPGuino.

[AndrzejM]

Originally Posted by stargazerf3a

Thank you that is really kind

I am aware that this sensor exist but not on late clios and kangoos there is only a fake sensor to cover that hole and does not have cables and such.
When i first tried to hook up the mpguino i took the service manual and searched the pin that vss sensor hooks up to the ecu and guest what, nothing there just a little rubber cap. So i've downloaded an newer version of the so called Renault dialogys and read about this feature they did to newer versions to reduce the amount of cables and connectors and that is true, half of the pins on the ecu are not used. So i has thinking that i can install a real sensor to the gear box that will be used only by the mpguino and consoluino (for cruise control maybe).
But i can not say it is cheap...
SPEED SPEEDO SENSOR RENAULT CLIO SPORT 182 172 2.0 16v LAGUNA MEGANE SCENIC 1.9 | eBay

You can always try a local junkyard

[AndrzejM]

Originally Posted by razor02097

It is just a simple reed switch. I don't think the ECU is as sensitive to SB as the MPGuino.

If you say so

[stargazerf3a]

Originally Posted by AndrzejM

You can always try a local junkyard

Of course tomorrow is a day off time for ecomodding

[stargazerf3a]

Originally Posted by AndrzejM

If you have access to oscilloscope you may see what's the issue there. But if switch is bouncing that may cause ECU to work incorrectly. Maybe you should take a closer look at your VSS switch.

Maybe mine is too cause abs sometimes feels like it locks the wheels a little when i am on a bumpy spot but that is just a reading from my butt-o-meter

I'll Try junk yard tomorrow that is a day off ecomodding day

[AndrzejM]

Good luck!

[razor02097]

I have tested this mod at 70ish. The speed reading is stable. There is no jumping or interference also it didn't mess any of the PPM or microsec/gallon settings up.

I would say mission accomplished