ive recently transplanted a '89 erst engine into a mk5 it was goin for awhile but as soon as i went to take it out it didn't want to start , it seems like the sensor plate has got really stiff when its held down it starts straight away soon as u let it dies seems like theres not enough suction to pull air past it. i've checked for leaks in intercooler hosing anyone have any ideas?? cheers