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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0089, P00C6, P228C, P228D, or P2C1E-P2C20 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different variant/trim than selected.

P0089 

Q18 Fuel Pressure Regulator = Not Within 0 to 240° - For greater than 10 s

P00C6 

Desired Fuel Rail Pressure - Engine Cranking Engine Crank Time Engine Coolant Temperature Fuel Rail Pressure
Less than desired 11 s -40°C (-40°F) Actual pressure is not equal to the desired pressure
Less than desired 3 s 20 to 95°C (68 to 203°F) Actual pressure is not equal to the desired pressure
Less than desired 5 s Warmer than 112°C (234°F) Actual pressure is not equal to the desired pressure
Greater than desired During the first 10 engine revolutions. Colder than -10°C (14°F) Pressure drops greater than 2 MPa (290 PSI)
Greater than desired During the first 10 engine revolutions. 0 to 8°C (32 to 46°F) Pressure drops greater than 0.6 MPa (87 PSI)
Greater than desired During the first 10 engine revolutions. Warmer than 8°C (46°F) Pressure drops greater than 0.5 MPa (73 PSI)

P228C, P228D, P2C1F, P2C20 

The following parameters are not within 3 MPa (435 PSI) of each other:

The above condition(s) must occur for greater than 10 s.

P2C1E 

G18 High Pressure Fuel Pump - Control = Greater than the maximum threshold - For greater than 10 s