Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure– Faulty Fuel injector – Intake air leaks– Faulty Air Flow Meter Tech notes If
Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure– Faulty Fuel injector – Intake air leaks– Faulty Air Flow Meter Tech notes If
Possible causes – Shorted injector circuit – Faulty fuel injector – Faulty fuel injector interface module Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1273 MAZDA Description A fault is detected by the fuel injector interface module
Possible causes – Shorted injector circuit – Faulty fuel injector – Faulty fuel injector interface module Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1273 FORD Description A fault is detected by the fuel injector interface module
P1273 GMC – Accelerator Pedal Position Sensor 1
P1273 BUICK – Accelerator Pedal Position Sensor 1
P1273 CADILLAC – Accelerator Pedal Position Sensor 1
P1273 CHEVROLET – Accelerator Pedal Position Sensor 1
P1273 DODGE – Fuel Solenoid Response Time Too Short