Quote:
Originally Posted by fasteract7
Forgot to ask...any thoughts on why a "misfire" from the bad coil didn't pop a CEL ?
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I am not sure last time I had a bad coil it was more pronounced and it was throwing codes. When I unplugged the injector there was a very slight change in how the engine was running, where as the other banks made a large change when unplugged. I suspect that maybe it was still functioning in a reduced capacity but I really can't say for sure.
The other unusual thing is that it turned out to be the same coil that I replaced a few years ago, but that replacement coil was used so probably doesn't mean much.