Heres the story. brought a cav turbo which looked pretty much standard. put the engine loom etc into mk2 astra cabbie. got the car running all fine. used the car couple times a week for the last 2 weeks, been running fine on and off boost, no problems.
took the car out yesterday for a run, all running fine for a while. then i was going down a slip road, decided to give it sum and when the car come on boost it didnt react to well, like a spluttering holding back feeling. obviously didnt hold it there so i let off. its weird, the car drives perfect and does just as u come on boost but if you floor it it will hesitate and splutter. there are no management lights on.
Im new to the LET world and need some advice and help please??