I used every write up on the net, I'm sure it was running on 3 pistons too. I used small connectors that connected directly to each small prong on the new coils ( I replaced them all ). I didnt solder because I just couldnt get it right. I'm thinking the problem could be the connectors I used. The plugs were new about a year ago NGK Plats. I'm thinking I should replace those now too.
I am not trying to be rude or harsh but this should be the first hint something went wrong with your install. I've done the coil conversion with help and then helped someone else do the conversion. I've met many people with successful conversions. They were all soldered. On the two I was involved with I soldered everything. I did all of my connections with high temp solder, then I used dielectric grease to prevent the remote possibility of any future potential corrosion, then electrical tape and heat shrink tubing to cover and insulate all of the solder connections including soldering my crimped connections to the ring terminals.
If you didn't solder the connections then how did you make the connections? Its possible you are right an you need a second set of eyes but its also possible you did everything right and you just have a bad connection because it wasnt soldered.
The first thing people have trouble with when soldering is getting both pieces of material being soldered hot enough. You should heat both ends together for a bit before you try to add solder. If you cant get them hot enough then you need to clean and tin the tip of your soldering iron or you need a more powerful soldering iron.
When both connections are hot enough you apply the solder to the connections (NOT TO THE SOLDERING IRON) and the connections will literally suck the solder into the connection joining the two pieces. Having said that if you get your connections too hot you will melt the plastic insulator right off the wire. It takes a bit of practice to get the heat perfect.