Edmund Turner Posted September 1, 2021 Report Share Posted September 1, 2021 hi all, I have a Fury G4X connected to a wiring loom and a battery on a table. It has a base map and I can test all outputs/inputs and sensors, except the knock sensor. As I understand the vehicle must be runnng and past the RPM lockouts for the knock sensor to be active. I may be missing the obvious but Is there a way to bench test knock sensors without installing them in a running vehicle? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 1, 2021 Report Share Posted September 1, 2021 1st, set that disable digital input to off as it wont work with it permanently disabled... I havent tested this, but I expect this will probably work: Set RPM low and TPS low lockout to 0. Add parameter "Knock Level Global" to a big gauge on screen. Give the engine block a wack with a spanner or similar. Quote Link to comment Share on other sites More sharing options...
Edmund Turner Posted September 1, 2021 Author Report Share Posted September 1, 2021 Adam, I cant set RPM low to below 500rpm, thats the min. Any other suggestions? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 1, 2021 Report Share Posted September 1, 2021 I just tested on the bench - you will in fact need a real running engine to test - or at least a fake RPM signal. Quote Link to comment Share on other sites More sharing options...
Edmund Turner Posted September 1, 2021 Author Report Share Posted September 1, 2021 Thanks for confirmin. I will source for a oscilloscope that can generate a rpm signal to bench test the knock sensors Have a great day ahead. Quote Link to comment Share on other sites More sharing options...
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