I tried about an hour today to start my engine without success. It would start but would die in about 4-7 seconds on its own. Also it would die if I tried to increase the throttle by hand. It only has about 6 tanks of nitro through it and the last time it ran it was the same temperature and it ran perfectly. I did install a fuel filter also I changed the fuel line and the line from the exhaust to the fuel cell before trying today. Nitro is good I know because it's only about a week and a half old. I'm going to try a new glow plug and a new battery in my glow starter tonight. I tried to push the glow plug into my starter to see if it glowed but nothing happened. Same results when I tried it on a few other brand new glow plugs. Does it have to be dark to see it glowing? I'm very frustrated. Any help would be appreciated. Thanks!