PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 63 / 892

N.B.
CHECK THAT NO EXHAUST FUMES LEAK THROUGH THE OXYGEN SENSOR (LAMBDA
PROBE) ATTACHMENT.
Locking torques (N*m)
Exhaust manifold for oxygen sensor 29.4 ÷ 39.2 Nm
4 . Check the oxygen sensor (lambda probe) cable
for signs of cracks or other kinds of damage. If
necessary, replace the oxygen (lambda probe)
sensor with a new one.
5 . Check that the oxygen sensor (lambda probe)
connector is properly connected and fixed. Other-
wise, connect and fix the connector properly.
Exhaust emission control system
Fuel vapour emission control device
1. Visual inspection of the connections and the
fuel vapours duct.
Check that ducts and connections are not loose,
twisted or damaged.
2. Visual inspection of the fuel tank.
Check that there are no deformations, cracks or
fuel leaks. Replace the fuel tank, if necessary.
N.B.
CHECK THAT THE ACTIVATED CARBON FILTER PIPE IS
NOT OBSTRUCTED AND THAT THE FILLER CAP HAS NO
DEFECTS.
CO check
CO/HC concentration check
Arrangements before the CO/HC concentration check.
- Pull the handbrake all the way.
- Check and adjust ignition timing
- Check and adjust idle speed.
- Warm up the engine.
- Take all the accessory switches to OFF.
- Fit the filtering element.
- Connect all the pipes and the low-pressure pipe.
- Check that there are no air leaks in the intake system.
- Check that there are no gas leaks in the exhaust system.
PORTER 1.3 16V
Emission Controlo System
CO EM - 63