How to find bad injector?

[smorgan87]

Probably an actuator if you're getting actuator codes. The coils can be ohmed out and the valves can be checked. Rawze has a vidyo on doing that. Anything obvious like leaking fuel from the fuel block? Fuel lines? Air bubbles in the davco? Stock engine or demandated? If its demandated, ur exhaust note can tell u a bit also soot dripping down the stack soot speck all over the place or a clean outside of the stack.