P1273 Buick Cylinder #3 High To Low Side Open
Possible causes
– Shorted injector circuit
– Faulty fuel injector
– Faulty fuel injector interface module
– Faulty fuel injector
– Faulty fuel injector interface module
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1273 Buick Description
A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector circuit
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera