Engine Opel 1,4 16V NA, 4 cyl, firing order 1342, without modifications (except exhaust, manifold, air filter)

Car using stock coils, stock injectors, stock electronic throttle body Bosch.

ECU SerialNr:15160


Car was tuned a half year ago, run perfect, without problems, but since one day last week, customer had a problem with start.

After checking all data with PC, i found problem with internal MAP sensor.

MAP still show 5-10kPa even if the hose is disconnected from intake. I also try to make little over/under pressure with mouth, but MAP value did not change.

This is a screenshot of MAP value and MAP settings:


MAP sensor

is very easy to diagnose, even without disassembling, just remove endplate.