Possible causes

– Faulty Oxygen Sensor
– Fuel pressure high or low
– MAF sensor dirty/defective
– Vacuum leak on engine
– Leaking fuel injector or fuel pressure regulator
– Faulty Powertrain Control Module

When is the code detected?

ECM could not adjust fuel trim because of a lean or rich condition

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1130 FORD Description

A Heated Exhaust Gas Oxygen (HEGO) Sensor is monitored for switching. Test fails when the HEGO sensor fails to switch due to circuit or fuel at or exceeding a calibrated limit.

FORD Technical Service Bulletins for P1130 code