PCM compares the MAPS output and calculated MAPS value while enable condition is met. If the acutal MAP value is higher than Maximum threshold or lower than Minimum threshold for a pre-determined time, PCM determines that a fault exists and a DTC is stored.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Plausibility Check | 1. Poor Connector Connection 2. Dirty Air Cleaner 3. Oil Cap or Dipstick missing or not installed propely or damaged 4. Air Leak in Intake System 5. Defected MAP Sensor 6. Defected TPS |
Enable Conditions |
•
Engine speed higher than 640 to 960 RPM depending on start ECT
•
Pressure Quotient(Manifold Pressure/Ambient Pressure) less than or equal to 0.8
•
Battery voltage higher than 11 V and lower than 16 V
•
No relevant DTC present | |
Threshold Value |
•
Filtered Reduced Area controller less than -90..-40% and higher than 20..30% versus ambient pressure and throttle opening area | |
Diagnostic Time |
•
5 sec. | |
Mil On Condition |
•
2 Driving Cycle |
