Diesel diagnostics
| Pressure sensing Beru glow plugs |
| Cam Crank Correlation on a Nissan YD22ETI |
Electronic Engine Control Sensors
Actuators
| Idle Air Control Valve |
| Evaporative Emission Control System Purge Valve |
| Exhaust Gas Recirculation Valve |
| Fuel Injector |
| Continuous Variable Valve Timing |
| Fuel Pump |
Ignition Systems
| Distributor Ignition |
| Distributorless Ignition System |
| Coil-On-Plug Ignition System |
Complex Engine Diagnostics
| CSS script |
| Px script |
| ElPower script |
| CKP-CMP synchronization |
Software
| How to install Flash Player |
| How to generate formula |
| Software updates |
Air Flow Sensor
The Mass Air Flow (or MAF) sensor measures the amount of air consumed by the engine. The term "mass" refers to the fact that this sensor measures the weight (or mass) of air. Earlier sensors such as the Bosch Vane Air Flow (or VAF) meter measured the volume of air. Because the density of the air varies with temperature and altitude, the Power train Control Module (PCM) had to perform additional calculations to determine the actual amount of air consumed by the engine. The signal from the MAF sensor is a major input for determining fuel delivery and, to some degree, ignition timing.
Types:
- Volume air flow sensor
- Hot element mass air flow sensor
- Hot wire mass air flow sensor
- Hot film mass air flow sensor
- Karman vortex air flow sensor
