i've taken the leads and plugs out cleaned and replaced (Splitfire leads, NGK Iridium plugs). The idle went from 1100 to 1000RPM then after a drive it's back to 1100RPM :x Still stuttering and holding back, Next i thought it might be the boost sylenoid so i got rid of that and fit a turbosmart manual boost controller the first run i was able to hit 0.8bar then stuttering, now it wont hold boost at all, it makes it to 0.45bar and stutters no matter how i set the boost controller,,,, So i'm a lil lost here is the next step to suspect the acuator or the MAF? :?
Also the previous owner told me the timing was retarded to 18 degrees when it arrived to canada due to our lower octane gas, could the timing be the problem
Also the previous owner told me the timing was retarded to 18 degrees when it arrived to canada due to our lower octane gas, could the timing be the problem