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As in the title, I have a 2003 SAN with an Excalibur engine. All maintenance is up to date, oil looks good, temps are normal while running (according to gauges).
After running at any cruising speed (25 mph+) for a few minutes, when I slow down to idle the Check Engine light (red on the dash) comes on. If I rev it up even to 1,000 or 1,500 RPM it goes away. Comes back as RPMs drop. Oil pressure looks fine, 40+ always even at idle. This is NOT the v-drive oil pressure light, it's 100% the Check Engine light.
Impeller is new last year. Plugs were changed in 2020 @ 750 hours. Currently @ 965 hours. Cap and rotor also new this year. I did see this occasionally last year but kind of forgot about it without any other symptoms!
It doesn't hiccup or skip a beat at any point, idle or at speed, under load or empty, it runs perfectly all the time. Any thoughts? What should I look at next? Or keep ignoring it?
I suppose I should see if there are any stored codes, that I have not done, and probably can't bug my friends at the marina in mid-July for a favor...
After running at any cruising speed (25 mph+) for a few minutes, when I slow down to idle the Check Engine light (red on the dash) comes on. If I rev it up even to 1,000 or 1,500 RPM it goes away. Comes back as RPMs drop. Oil pressure looks fine, 40+ always even at idle. This is NOT the v-drive oil pressure light, it's 100% the Check Engine light.
Impeller is new last year. Plugs were changed in 2020 @ 750 hours. Currently @ 965 hours. Cap and rotor also new this year. I did see this occasionally last year but kind of forgot about it without any other symptoms!
It doesn't hiccup or skip a beat at any point, idle or at speed, under load or empty, it runs perfectly all the time. Any thoughts? What should I look at next? Or keep ignoring it?
I suppose I should see if there are any stored codes, that I have not done, and probably can't bug my friends at the marina in mid-July for a favor...