Look, it may not be a signal, but to be comfortably safe, I could try the injectors in a test bench, to be sure of the operation of the same, or if you are not what you can do is change the position injectors and Provar disconnecting the same cables that you mention if the fault persists in the same cylinder that is to say 3 and 4 emo we talk about injection pulses, if this is the case Sequential that is to say all the injectors throw to the same time, you could have the phase cable with the injector on the side to see how I go, I am in a Ford Score and it worked unpeeled if it would work in the 150s. You mention to see if they come out mojodas or dry as there is no injection or an ex -ex -extent, whether the injector is abiet or serrated.