Can a vacuum leak kill a PCM?

[getsum111]

I'm so frustrated. Before Thanksgiving, I got a CEL pointing to bank 1 Lean, and a misfire in #6, and random misfire, code P0300. Replace O2 sensor, not it. Then I find a leak in the PCV evap. emissions hose, replace hose. Still getting misfire. Replace plugs, wires, test coil, cam sensors. Still misfiring. Get a noid light, the injector #6 is not getting a signal. Trace wire back to PCM, it has continuity. So it's looking like an injector driver is dead.....new PCM. Could the vac. leak have caused the PCM to go bad? The car ran fine till this, no trouble at all. Can just part of the PCM go bad?

 

[Tony2005]

"Could the vac. leak have caused the PCM to go bad?"
Probably not.

"The car ran fine till this, no trouble at all. Can just part of the PCM go bad?"
Maybe. But think good thoughts and try the other cheap and easy suggestions (previously posted) first.

 

[getsum111]

I did. Now only expensive and difficult one's left.