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Mil light on, strange code

340truck

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City
chelmsford
State
Non-US
Country
United Kingdom
What I Drive
2007 Style
#1
2008 1.2 Style, engine management light on, obd code reader shows fault code 30 what's wrong?
 

Handy Andy

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City
Grand Rapids
State
MI
Country
United States
What I Drive
2018 Ford Fiesta SE HB
#2
P0030 code is a HO2S (your heated Oxygen Sensor) might need to be replaced.

You have two - so one usually refers to Bank 0 (being the Upstream BEFORE catalyst)

But that does you no good if you run Diesel fuel - then the P0030 code is something else but is emissions.

Considering the age, either sensor or wiring to it is bad or needs to be inspected and ruled out - this "30 code" is a Generic response to any issue with the Oxygen Sensor.
 


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