Description
The crankshaft position (ckp) sensor system consists of a ckp sensor plate and a pickup coil.
The sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of wound copper wire, an iron core and magnet. The sensor plate rotates and, as each tooth passes through the pickup coil, a pulse signal is created. The pickup coil generates 34 signals per engine revolution. Based on these signals, the ecm calculates the crankshaft position and engine rpm. Using these calculations, the fuel injection time and ignition timing are controlled.
Reference: inspection using an oscilloscope.
Hint:
Monitor description
If there is no signal from the ckp sensor despite the engine revolving, the ecm interprets this as a malfunction of the sensor.
If the malfunction is not repaired successfully, a dtc is set 10 seconds after the engine is next started.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Component operating range
Wiring diagram
Inspection procedure
Hint:
The engine speed may be indicated as zero despite the engine revolving normally. This is caused by a lack of ne signals from the crankshaft position (ckp) sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the ckp sensor output voltage is insufficient.
Standard: correct values are displayed.
Hint:
Standard resistance
Hint:
Terms cold and hot refer to the temperature of the sensor. Cold means approximately -10 to 50°c (14 to 122°f). Hot means approximately 50 to 100°c (122 to 212°f).
Standard resistance (check for open)
Standard resistance (check for short)
Ok: sensor is installed correctly.
Ok: sensor plate does not have any cracks or deformation.
Hint:
If the engine does not start, replace the ecm.
Installation
Install camshaft timing oil control valve
assembly
Apply a light coat of engine oil to the o-ring of the oil
control valve.
Install the oil control valve with the bolt.
Torque: 9.0 N*m (92 kgf*cm, 80 in.*Lbf)
Notice:
Make sure that the o-ring is not cracked or
jammed.
Co ...
Precaution
Notice:
Perform the reset memory procedures (a/t
initialization) when replacing the automatic transaxle
assembly, engine assembly or ecm (see page ax-18).
Hint:
Reset memory cannot be completed by only reconnecting
the cable to the negative (-) battery terminal.
Caution:
When using compresse ...
General driving notes
Closing the trunk lid
Safety information
Warning
An open trunk lid protrudes from the vehicle
and can endanger occupants and other traffic
participants or damage the vehicle in the event
of an accident, braking or evasive maneuvers.
In addition, exhaust fumes may enter the car's
interior. The ...