Mirage L4-1468cc 1.5L SOHC 12 Valve (1996)
Manifold Pressure Differential Sensor: Initial Inspection and Diagnostic Overview
Hint 1: If the engine sometimes stalls, try starting the engine and shaking the manifold absolute pressure sensor harness. If the engine stalls, the manifold
absolute pressure sensor connector contact could be defective.
Hint 2: If acceleration is poor or the engine stalls, the vacuum hose between the manifold absolute pressure sensor and the intake manifold could be
blocked.
Hint 3: If the engine will run at idle speed even if the intake manifold plenum pressure is outside the standard value, there is a large probability the cause
is something other than the manifold absolute pressure sensor.
1. Combustion inside the cylinders is defective (Defect in spark plugs, ignition coil, injectors, compression pressure, etc.)
2. Air is entering the intake manifold through a gap in the gasket.