Hey guys, ran into a truck that is giving me and my guys a run for our money. Its a Yale GLC050RGNUAE082 E187V19023Z. It's cranking but not starting, have replaced the coil, ignition switch, distributor assembly, cap rotor and all the internals. Coil is getting voltage but is getting a really weak ground pulse, traced the wire to a type of module/switch underneath the air filter housing. Can't find that module/switch on any of the service manuals I have for this truck, don't know whether the ground problem is originating from this part or if one of the grounds are bad and that's why the signal pulse is weak. We have also tested the fuses in the fuse box and all of them are fine. Any help or tips would be greatly appreciated. (picture is of the module/switch underneath the air filter housing)