I have a single setup in my car, with a power fc.



When the car is cold i have to crank it for maybe 5-10 seconds, and when hot maybe 15-30 seconds. WHY???



It´s always been this way. The engine is rebuild, and it has been this way for 2 years...



Need help, sugestions???

 

does it try to crank then sputter a lil bit and finally smooth out or does it just crank crank crank , Vrroooom type thing?



More info will be helpful.

 

Yeah.. it kinda sputter, you kan here it´s about to start... and i´ll just have to keep on cranking, then finally it starts...

 

there are two instances when my car did that....



once was because the car was not tuned properly and the other was after it was tuned, i had low fuel pressure at start up because of a dying battery.



has your car been tuned for that single turbo that you have?

 

oh yeah... when was the last time you changed your spark plugs?

 

The car was tuned for two weeks ago, for the power fc.



Before that i had the AEM EMS, it was the same back then...



The sprak plugs was changed this weekend...

 

have you had your compression tested?

 

If compression is good, and the plugs are new, how about plug wires and....maybe weak coils?