i have a 93 sc300 NA-T. number 1 cylinder intermittent misfire. used noid light on #1 injector connecter and poor signal. backprobed 6 cylinders off ecu and got good voltage on all 5 except #1...is this the ecu giving me problem or any other way to diagnos this? need help thanks

 

Scope the current on that injector. If there is a *Drivibility (auto repair) near there any tech that uses a scope to look at electrical components can see if that injector has a intmt falure. I would check resistance in the power side as well as the ground side, compair your readings with the other injectors. pm me your # if you get stuck.