Righty then, back to this problem yet again
car is 1.8 efi zvh, chip, cam bla bla bla!!!
The problem is that when you floor it, the car will suddenly cut the ignition- almost as if its hitting the overboost, and from then on will continue to do so if you floor it.

However, if you are nice and progressive on the throttle, then its fine, and will boost as per normal....

I say back to this prob again, as it happened last year, and it turned out that i had received an xr2i ACT rather than a frst ACT, and that was causing the problem, buit this has been changed, and been good as gold until about a week ago!

Does it sound like the map sensor is fubar, so a new one would solve it?- and if thats the case how much am i looking for a 3 bar jobbie ? (as the management is OFAB).
Finally, i am right in thinking it is a straight swap, yeah????

Cheers for your help on my shonky lego like engine!