Join Date: Jun 2010
Location: PA, USA
Ferrari Life Posts: 4,439
Late to the party, but…while the unit you bought might not work it should be possible to get a knock senor working. The thing is every engine makes different noises so it’s very hard to get a universal type thing to work. The factories send a lot of time on the dyno mapping the acoustics of the engine then program “normal” into the ECU so they are only looking at abnormal.
On the ECU project I’m on we are planning to use 2 techniques. First is a “knock window” where we only listen when knock should be possible which greatly reduces the noises the ECU hears. Second is to map/log the readings and let you adjust what the ECU is looking at, so it will ignore anything you found under “normal” operation and anything new is a problem and it will pull the timing back. Tuning a knock sensor to work properly can take a lot of time…..