Can any one please advise .I have a classic with an ej257, apexi, 650s,decat, big turbo, etc when it was first mapped it started first turn of the key, but recently it is becoming more and more of a pain to start, mostly from cold but sometimes from warm too.could this be a sensor? and if so how would i find out?
Incedently it runs beautifully when it starts.Any help would be much appreciated.

 

sounds like crank sensor fault..

 

thanks for your advice, i will change the crank case sensor and see how it works out. Dan