Frequently Asked Questions
Question
Engine Speed Sensor - Magneti Marelli 6lpb fuel injection
Answer
Engine speed sensor (1313)
The sensor is located opposite the teeth of the flywheel .
Role of the injection ECU according to the data received :
To check the engine speed
To determine the position of the crankshaft
To calculate the ignition advance
To regulate the idle speed
Description The sensor is of the inductive type .
Components of the sensor :
A permanent magnet
An electric winding
The sensor provides an electrical signal every time a tooth on the flywheel passes by (change in magnetic field) .
The 58 teeth are used to work out the engine speed .
The 2 missing teeth are used to work out the crankshaft position (no signal) .
N.B. : The air gap value is not adjustable .
Electrical features
Allocation of the connector channels :
Channel 1 : Signal
Channel 2 : Earth
Resistance between channels 1 and 2 : 425 - 525 ohms .
Features of the signals emitted : Variable frequency alternating voltage .
Location
Location : On the clutch housing .
Details
Info 22 September 2009 by Dave_Retired.
C4 - DS4 Owners
Question
Engine Speed Sensor - Magneti Marelli 6lpb fuel injection
Answer
Engine speed sensor (1313)
The sensor is located opposite the teeth of the flywheel .
Role of the injection ECU according to the data received :
To check the engine speed
To determine the position of the crankshaft
To calculate the ignition advance
To regulate the idle speed
Description The sensor is of the inductive type .
Components of the sensor :
A permanent magnet
An electric winding
The sensor provides an electrical signal every time a tooth on the flywheel passes by (change in magnetic field) .
The 58 teeth are used to work out the engine speed .
The 2 missing teeth are used to work out the crankshaft position (no signal) .
N.B. : The air gap value is not adjustable .
Electrical features
Allocation of the connector channels :
Channel 1 : Signal
Channel 2 : Earth
Resistance between channels 1 and 2 : 425 - 525 ohms .
Features of the signals emitted : Variable frequency alternating voltage .
Location
Location : On the clutch housing .
Details
Info 22 September 2009 by Dave_Retired.
C4 - DS4 Owners