does anyone know where i might find the iac on my carisma gdi, i have found the tps and the motor on the throttle body but can't find the iac? got my throttle body changed but my car seems to judder at 50mph and when i get past 50 it feels though the engine pulls and lets go, as if the accelerator was been pressed and let go etc... it also idles low when in traffic especially when cold it won't idle in drive! and when i turn on the air con it also cuts off due to the low revs? i have also done a de-coke with air intake cleaner and it's still the same. please help

just taken it for MOT it failed on emissions, the CO passed 252, the HC fail 281 and lambda 1153?? anyone know what i can do?! i have cleaned the thottle body, do-coked the inlet manifold, the only think i can't get off is the filter underneath the manifold? does anyone have any suggestions

come on 8 views and nobody knows!