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Chevrolet Equinox P1643 Engine Error Code

When you check Chevrolet Equinox car engine light came on code P1643 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Chevrolet manufacturer may have a different definition for the P1643 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P1643 Chevrolet Equinox Code Clear

On 1999 and later P1643 Chevrolet Equinox engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

P1643 Code Reason

Chevrolet Equinox P1643 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1643 Fuel Pump Monitor Circuit Low Input so you have to check ODB-II Engine Error Code list.

Reason For Chevrolet Equinox P1643 Code

The reason of Chevrolet Equinox P1643 OBD-II Engine Error Code is P1643 Fuel Pump Monitor Circuit Low Input.

There are currently two main types of cylinder deactivation used today, depending on the type of engine. P1643 Chevrolet Equinox code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.

Chevrolet Equinox P1643 Possible Solution :

In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.

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