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Just thought I'd post what I learned this weekend. My boat ('08 230 ZR6) overnight developed a miss, it ran great on Saturday, wakeboarded a set, hung out to watch sunset, then a putt putt cruise home. Took it out Sunday and it was missing. Hmmm.
I was able to determine that cylinder #7 was the culprit. Since I haven't put new wires on it since I've owned her, get a set of new plug wires to try. Still missing, switched coil packs, nope.
I couldn't tell if the injector was firing, so I tried the "stethoscope method" not conclusive. I was trying to find a Rinda scanner but couldn't get my hands on one.
Then I figured it couldn't hurt to change the #7 plug (hadn't considered plugs as they were replaced last year). Bang, that was it!! The plug I removed didn't look bad at all (they are the Iridium versions).
I think I purchased the "new plugs" last year through Rock Auto, maybe I got a bogus set? I've read that there are some knockoffs floating around on these. I just thought to post here in case somebody else runs into a weird problem like this.
I was able to determine that cylinder #7 was the culprit. Since I haven't put new wires on it since I've owned her, get a set of new plug wires to try. Still missing, switched coil packs, nope.
I couldn't tell if the injector was firing, so I tried the "stethoscope method" not conclusive. I was trying to find a Rinda scanner but couldn't get my hands on one.
Then I figured it couldn't hurt to change the #7 plug (hadn't considered plugs as they were replaced last year). Bang, that was it!! The plug I removed didn't look bad at all (they are the Iridium versions).
I think I purchased the "new plugs" last year through Rock Auto, maybe I got a bogus set? I've read that there are some knockoffs floating around on these. I just thought to post here in case somebody else runs into a weird problem like this.
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