Removal and installation the lambda probe (Mitsubishi Lancer 3)

On petrol engines with a regulated catalytic converter, the lambda probe serves to regulate the composition of exhaust gases. The probe is screwed into the exhaust manifold.

Note: The connection cable cannot be repaired or soldered; if the cable is damaged, the entire lambda probe must be replaced.

Removal

Disconnect the lambda probe connector from the right front side of the cylinder head.

Engine 1.3 / 1.5 l

To remove the lambda probe, use a special open-end wrench (MD 998 770).

Engine 1.6 / 1.8 l (16-valve)

(The source of the article is available at: «MITSUBISHIMAN»)

To remove the lambda probe, use a special open-end wrench (MD 998 703).



If there is no special key, unscrew the heat-protective cover of the manifold.

Unscrew the lambda probe from the front muffler pipe or from the catalytic converter housing.

Installation

Attention: When replacing, install a lambda probe of the same type.

Clean the threads.

Coat only the thread of the lambda probe with special BOSCH grease for lambda probes. New probes are already coated with this grease. The grease must not get into the splines or holes in the probe body. Do not touch or contaminate the probe body.

Note: If the probe is screwed in without lubrication, the thread will stick later. In this case, it will be impossible to unscrew the lambda probe.

Screw in the lambda probe and tighten to 50 Nm.

Connect the lambda probe connector.