Rex B Posted May 21, 2014 Report Share Posted May 21, 2014 My SGT has start stumbling under load and sets the CEL (both engine icon and wrench icon). code reader returns a P068B code, which is "Engine Control Relay Opens Too Late". From what I can read about that relay, all it does is provide operating current to the ECM, and should not be opening or closing once the key is on. That doesn't sound like it would product an intermittent misfire. Maybe there is more to it that I am missing? Have any of you had this issue, with this code being set? If so, what fixed it? If it is indeed a simple relay replacement, I'll just go do that. Link to comment Share on other sites More sharing options...
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