MechanicDB
Fault Family System: Powertrain (P-Codes) 15 SAE Codes

Fuel Rail Pressure Sensor Circuit

Diagnostic & Technical Explanation
Code P0190 (Fuel Rail Pressure Sensor Circuit Bank 1) sets when the ECM sees an open, shorted, or out-of-range signal from the high-pressure fuel rail pressure sensor. Causes are a failed sensor element, a corroded connector at the rail, or damaged sensor wiring near a high-heat area.

These 15 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 15 times.

Codes in this family (15)

CodeDefinitionRepair coverage
P0190Fuel Rail Pressure Sensor Circuit Bank 13 ranked fixes
P0191Fuel Rail Pressure Sensor Circuit Range/Performance Bank 13 ranked fixes
P0192Fuel Rail Pressure Sensor Circuit Low Bank 13 ranked fixes
P0193Fuel Rail Pressure Sensor Circuit High Bank 13 ranked fixes
P0194Fuel Rail Pressure Sensor Circuit Intermittent/Erratic Bank 13 ranked fixes
P01A3Alternative Fuel Rail Pressure Sensor Circuit3 ranked fixes
P01A4Alternative Fuel Rail Pressure Sensor Performance3 ranked fixes
P01A5Alternative Fuel Rail Pressure Sensor Circuit Low3 ranked fixes
P01A6Alternative Fuel Rail Pressure Sensor Circuit High3 ranked fixes
P01A7Alternative Fuel Rail Pressure Sensor Circuit Intermittent/Erratic3 ranked fixes
P01BEFuel Rail Pressure Sensor Circuit Bank 23 ranked fixes
P01BFFuel Rail Pressure Sensor Circuit Range/Performance Bank 23 ranked fixes
P01C0Fuel Rail Pressure Sensor Circuit Low Bank 23 ranked fixes
P01C1Fuel Rail Pressure Sensor Circuit High Bank 23 ranked fixes
P01C2Fuel Rail Pressure Sensor Circuit Intermittent/Erratic Bank 23 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here: