P1273 GMC Cylinder #3 High To Low Side Open

P1273 GMC Cylinder #3 High To Low Side Open

Possible causes
– Shorted injector circuit
– Faulty fuel injector
– Faulty fuel injector interface module
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1273 GMC Description

A fault is detected by the fuel injector interface module in the secondary (rearward) fuel injector circuit

GMC Vehicle:GMC Acadia,GMC Canyon,GMC Envoy,GMC Savana 1500,GMC Savana 2500,GMC Savana 3500,GMC Sierra 1500,GMC Sierra 2500 HD,GMC Sierra 3500 HD,GMC Terrain,GMC Yukon,GMC Yukon XL 1500,GMC Yukon XL 2500,
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