Knock Ignition Sensor (KIS) - aeonSolutions/AeonLabs-AI-Volvo-MKII-Open-Hardware GitHub Wiki
Main Page >> Engine Sensors >> Knock Ignition Sensor (KIS)
Last update 22-03-2024
The knock sensor is a +5V 2-wire piezoelectric unit, where the concussion of ignition induces a voltage that steadily increases as the crank gets closer to firing at TDC (=bad). The ECU reads this and adjusts the timing. A failed Knock Sensor will often have no noticeable symptoms beyond a check engine light or engine ping or knock, but it does cause your Volvo S60 to operate inefficiently and produce higher emissions.
| PIN | Function | Wire colors |
|---|---|---|
| 1 | brown | |
| 2 | brown |
PIN from left to right
| PIN | Function | Wire colors |
|---|---|---|
| 1 | yellow w/ black stripe | |
| 2 | black |
PIN from left to right
ðĒ Fully tested and working
A green circle means the hardware electronics or the programming code was fully tested, each of its functionalities and capabilities. And it can be installed in a vehicle. Keep in mind this does not mean errors won't happen. As in everything related to electronics and software, there are revisions and updates. This open hardware is no different.
ðŊ Fully tested & working, no improvements necessary - already being sold online
ð Fully Open hardware \ source code
ðĪŠ There's better than this. don't use it
ð Fully closed hardware \ source code
âĄïļ fully tested and working, however, it is a dangerous solution to deploy
ðĄ Not tested. Working capability is unknown, it may work or not.
A yellow circle means the hardware electronics or the programming code was not fully tested, each of its functionalities and capabilities. This does not mean it not working, it simply means testing is needed before giving a green circle of approval.
ðī Fully tested but not working.
A red circle means the hardware electronics or the programming code was fully tested, and found some kind of critical error or fault. This means the electronics or firmware code cannot be used in a vehicle.
â Not started.
The hourglass means the hardware electronics or the programming hasn't started. Most likely because is waiting for the necessary test components needed for reverse engineering and also engineering of the new open solution.
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