john lamon
Well-known member
I'm glad I'm not paying for this, changed spark plugs, that didn't work, changed throttle position sensor, that didn't work, stuck a new ECM on and she runs like a top, weird because we weren't getting a fault code from it. I won't be able to do a water test until the weekend but it seemed good in the test tank, way more power than ever.
Ok, it ran good in the test tank, I decided to take it for a lake test before I took off for Indiana on Tuesday and it was doing the same thing, still had a bog at WOT- back to the dealer who I was starting to wonder about, I've been taking my stuff there since I was 16 and never seen something drag out like this.
Now after researching the problem for four days and changing all these parts they say it was a back knock sensor that wasn't adjusting the timing properly, to me that would also explain why sometimes it would do 70 easy and the next time struggle to get to 55 .
Of course this part is no longer available from merc so they had to bypass the sensor, now I have to run premium fuel, not a big deal because I usually do anyways but all they sell at my lake is regular so it would be nice to have the option of running regular if I had to, this is getting expensive pre-mixing gas plus the oil injection and now premium fuel.
They lake tested it this morning and said it was good but I won't believe it till I see for myself tomorrow
This better work, if not I'm parking it and spending the day on the pontoon boat, I've been so caught up doing stuff on the mate all winter that I kind of forgot about the pontoon, haven't even seen it since last fall, either way I'll go get it tomorrow and throw it in, the E-TEC will pull through, LOL but the mate definitely has more cool factor
