Yes it was build over. If I disconnect the plug then the Isuzu goes into limpo mode. Permanent 3rd? Since the sensor is adjustable do you know what the resistance/voltage should be with the throttle completely depressed and completely released? It is going to the Diesel mech tomorrow.
Info on the setting on the pump itself?
At least they are good (from New Zeeland originally!)

Maintenace is high but woth it.
Isuzu goes places!