I just think its really strange that by turning off the key and restarting the engine the problem goes away and the engine runs fine until it pops up again when I start the engine some other day. Also the engine can be cold or hot, doesn't matter. But before one restart would do it and now its 3 or 4 restarts to get it to run normal. But yes I have two Z's I can start swapping parts, but first I think it would be easiest to put the original head lamps back in.