P1174 Buick Fuel Trim Cylinder Balance Bank 1
Possible causes
– Faulty Oxygen sensor
– Ignition problem
– Fuel injection problem
– Engine mechanical condition
– Ignition problem
– Fuel injection problem
– Engine mechanical condition
Tech description
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1174 Buick Description
The Engine Control Module (ECM) performs a fuel trim cylinder balance utilizing the HO2S, when the calculated accumulated voltage exceeds a predetermined level this code is set
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