Effects of Leakage at Intake and Exhaust End

Effects of leakage at intake and exhaust end
Leakage downstream of Mass Air Flow sensor
^ Effect: Loss of power
Possible malfunction sources:
1-Hose connection between mass air flow sensor and turbocharger
2-Connection hose to crankcase breather
3-Connection hose to mechanical air recirculation valve

Leakage downstream of turbocharger
^ Effect: Charge air pressure too low
Possible malfunction sources:
1-Connection hoses and line between turbocharger and charge air cooler
2-Hose between charge air cooler and intake manifold
3-Charge air cooler
4-Gasket of charge air pressure sensor -G31(in charge air cooler)
5-Gasket between throttle valve control module and intake manifold
6-Gasket between intake manifold and cylinder head