Hard sarting using premium fuel?

[BuickTV6]

Hello guys. I find this really weird. I am running high octane fuel at the moment, and it seems everytime i run it, I have a hard time starting it after the cars been running. Takes 4-5 times of good cranking then she fires. I am using the 85 ECM, and the ultrachip. It also did that with the 93 chip I had as well. Am I running too high of fuel pressure. Any other suggestions?

-Todd

 

[BuickTV6]

TTT

Anyone?

 

[TType84]

thats weird buddy.. i dont know why that would happen

id guess your o2 was dying, but since it starts and stays in open loop for atleast a few minutes im gonna say those two arent related..

weird..

the stuff smells great though, eh?

 

[mrtiptop]

Plug Wires

When the unit gets hot, The plug Wires just don't have it any more! Comes from getting Old !

 

[BuickTV6]

The plug wires are pretty new, only got maybe 5,000 miles on them. The problem only seems to happen with high octane fuel. I just dont get it. If i shut the car off, it'll start up witin 5-10 mins time. anything longer, it will NOT start first try.

-Todd

 

[BuickTV6]

TTT