ECU Failure?

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Joined
May 3, 2004
Threads
161
Messages
2,550
Location
Utah
Some of you may remember that a few years ago, I was dealing with a stumble in my 4Runner where the engine would momentarily 'shut off' flash the Check Engine indicator, and then literally turn back on. I spent a bunch of time and effort trying to get this issue fixed.

Long story short, the problem was that the ECU had gone bad.

Well, the stumble has come back, albeit, not quite as pronounced as the last time, but it's done it twice now...

Anybody have a clue as to what could cause the ECU to fail?
I think it's the injector driver in the ECU thats going bad (which is what happened with the last ECU). which leads me to believe that maybe I don't have a very good ground between the engine and the frame or perhaps the injectors are too high or too low of resistance...
 
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