Lambda Probe; Signal Control - VESPA LX Series User Manual

Vespa LX 125 - 150 i.e.
THE TPS RESET PROCEDURE MUST NOT BE CARRIED OUT WITH A USED THROTTLE BODY
BECAUSE POSSIBLE VALVE WEAR AND STOP WEAR FOR THE MINIMUM OPENING MAKE THE
AIR FLOW DIFFERENTLY FROM THAT OF PRE-CALIBRATION.

Lambda probe

SIGNAL CONTROL

1. Lambda probe
Install the electronic control unit interface wiring.
Start the engine and let it warm up.
Use an analogue multimeter with a direct voltage
scale measuring down to 2 V.
Place the tips of the multimeter between pins 4 (-)
and 11 (+)
Injection
INJEC - 183