GM Fuel Rail Sensor Pigtail | 2017 - 2023

Original equipment wiring harness that connects to the fuel pressure sensor on the fuel rail. 

As indicated in TSB 20-NA-197,  some 2017 to 2021 Silverados & Sierras may develop corroded terminals on this connector causing one or more of the following DTC's to be set causing the malfunction indicator lamp (MIL) to be illuminated: P0087, P0089, P0191, P026C, P026D, P1089, P163A, P163B, P2293, P228A, P228B, P228C, and/or P228D. If any of these codes are present, do an inspection of the connector terminals for corrosion or damage and replace as necessary.