First: thanks to all who contribute to this forum! Your shared knowledge is invaluable Second: I'm new to this forum and have had my Sambar for just over 3 years. I'm a Land Cruiser guy and am fairly handy with a wrench but still learning these machines. Vehicle: 1997 Sambar KV4 Fire Van, 4wd, EFI(not SC), 8,430 total km on the odo Issue: started to notice a rough idle situation which then turned into a smoking issue. Exhaust smelled heavy of fuel. The smoke has blueish color to it but does not smell like burnt oil. Cylinder #1 plug is wet with fuel; however, the other 3 look good and are dry. Runs good at RPM but smokes like crazy. It has had a CEL light flashing the entire time I've owned it but it did not seem to effect performance and I have no idea how to pull the code. The exhaust temp sensor was cut and grounded when I bought it and it appears to have been done in Japan at some point before being exported Troubleshooting thus far: I checked spark on cyl #1 and I have strong spark. Plugs, wires, cap, rotor are all pretty new. Oddly, the wet spark plug smells like old fuel; however, I drive this regularly and have run 3 tanks of fuel through it in the past 6 months. Wondering if the injector on #1 is possibly gummed up?? Oil looks good and engine temps are always normal, no overheating. I do not suspect a HG. I'm hoping the smoke is old/aged valve seals but I haven't done a compression test yet. Fuel filter is original. Anyone run into this issue before?