P0252 Buick Injector Pump Fuel Metering Control A
Possible causes
– Check Quantity Adjuster
– Check Modulator Piston Displacement Sensor
– Check Cold Start Injector
– Check Needle Lift Sensor
– Check Modulator Piston Displacement Sensor
– Check Cold Start Injector
– Check Needle Lift Sensor
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
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