Hello i have a 2.0 zetec turbo running on ofab but the problem i have is the car will not start,run or idol with the map sensor vacum pipe connected but if i take the pipe of she will start,run and rev up! i have tried another map sensor but unsure if the other one was a working one either.

I have searched the interweb and found three other people with the same problem but no cooont was kind anuff to leave the solution to there problem

Please some one help me out.