Have a bit of a mystery on my hands with an '88 Chevy Nova, which really is a rebadged Corolla using the carbed 1.6 liter SOHC 4A-C Toyota engine.
With engine cold, there is a miss on the leftmost cylinder. When it warms up slightly, the miss goes away and engine runs fine. When the engine reaches full operating temp, the miss returns and continues from then on out. This sequence happens like clockwork every time and the miss is present regardless of engine RPM. I checked compression and spark strength under both conditions (when stone cold and fully warmed) and found both to be good. The spark plug in the offending cylinder was changed (along with the others + spark plug wires) but problem continues. I checked the plug after the engine idled for a while and found it to be a bit carboned (that could be cuz the car wasn't driven), but nonethess I changed it again, but problem remained. Oil level is good and was just changed. A distributor cap and rotor are on order, but I don't think that will change much. Anybody have a clue on what might be going on? Not sure if I have a lean/rich ratio or if something is up with the valves/lifter for that cylinder. Next time I visit the car I planned on grounding out the plug wire on that cylinder, running the engine for a bit, then checking to see if the plug is wet or not just to make sure it's getting fuel.