Sealey 11 piece noid light iac test set sealey vs2131 locate and isolate ecu signal faults fast noid and idle air control valve indicator lights test for control signal from ecu simply disconnect harness and plug in appropriate light to see if the component is being fed a trigger signal set includes 1 3mtr fibre optic cable to allow light to be viewed from the drivers seat simple to use and has a wide vehicle application sealey vs2131 noid light iac test set 11pc