MCX Apex starting issues?

[MRFUSION]

Anyone else having problems with the new 290 Mcx kit and starting up in the cold. We have one that if its a little colder (-15 to -20) it fires up for a couple of seconds and dies. You can smell fuel and she wont start at all until you get the unit warm. When you get it going it runs OK. No codes or anything either. Any help would be appreciated. Thanx

 

[Chrusher]

What type of fuel are running. I have 310 kit running straight c12 fuel won't start at -15 or 20 if it has not been running for a week or too. Need to warmup sled in shop.

 

[MRFUSION]

Just premium fuel and stock boost with kit. I just seems to flood like the secondary injectors are coming on or something at start up.

 

[TBird]

Simple test, disconnect the secondary injectors and try, but it sounds strange to me as MCX ECU doesent add any fuel before it senses boost, and if it starts good when it's warm the engine would definitivly not start if secondary injectors add fuel!
Sounds to me, despite the fuel smell, that the engine gets to little fuel to start when cold, and when it's warm it gets same amount, but because a warm engine doesent need as much it gets enough to start.

 

[Extreme-One]

What kind of oil you running? My wife's MCX Turbo Apex has the same kit and a few weeks ago in Stanley we were there when it was -20. It took about 10-12 times to get it to start. It would start for about 15-20 sec then die. I thought the battery was going to die but it finally went. The sled has Mobile One Synthetic Oil running through it. There was another guy in a different group that had a turbo Nytro having similar issues and he finally had to take it to a warm shop to get it to start.