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Discussion Starter #1 (Edited)
VX runs good on the hose, then like it’s only on 3 cylinders on the water. So I changed the plugs 1st, new air filter and emptied the old gas and put some fresh 91 oct in it with a bottle of sea foam.. I also cleaned the injectors.
After that it ran ok for about 10 minutes then back to poor running like on 3 cylinders again. I kept running for about 5 gals worth to see if the sea foam would blow something out. It would occasionally seem like it was trying to catch but still ran poorly.
I looked at the plugs and they were dark (see pic). So I did a compression test and all cylinders were 175. Any suggestions where to go from here? I’m tempted to just run another tank of sea foam with new plugs to see it will help.
18856
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Discussion Starter #2
* Fixed* although no replies, wanted to post the solution in case somebody else searches this problem here one day. So the problem ended up being the wiring from the front cylinder coil pack, there was a short somewhere. Cheers
 
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