by v7guy » Mon Aug 31, 2015 4:09 am
I'm kinda interested in this, it would appear the usual suspect are addressed.
Most of your issues sounded similar to mine after a good dunking, they resolved themselves after a bit of drying out.
The random misfire is particularly interesting. You don't generally see multiple cylinders giving you the finger on these things. Have you pulled the coils and checked for water/oil at each one? It's a pretty common issue.
As James had mentioned a vacuum leak at the manifold can really bugger things up as well.
How old are your plugs, have you pulled em to see how they look?
Have you checked fuel pressure, specifically while at higher rpms? Lil harder to check it under load, but with some tape and some sketchiness you can cobble together a method to get the gauge on the windshield for a short around the block drive.
I'd be looking at fracked up plugs or a fuel pump on it's way out at this point. The worsening symptoms at load is what steers me this direction.
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