What is P0627 : Engine Error code Causes Explained
This guide covers the P0627 engine fault code, its meaning, causes, and solutions. Fuel delivery and engine performance may be affected by this fuel pump control circuit fault.
How to Identify a DTCs Number
he Diagnostic Trouble Code (DTC) P0627 refers to a Fuel Pump Control Circuit/Open error. Identifying a DTC number like P0627 requires an OBD-II scanner, which connects to the vehicle’s diagnostic port and retrieves error codes stored in the ECM.
Understand, this trouble codes (DTCs) are 5 characters: 1 letter, 4 numbers. P-Powertrain indicates the fault code’s location. Generic or manufacturer-specific codes are indicated by the first digit. The second digit denotes the subsystem (7=transmission). The last two numbers describe the issue.
Once connected, the scanner retrieves error codes stored in the ECM, helping you pinpoint issues related to your engine and other systems.
Causes of P0627 Error Code:
- Faulty fuel pump:
Common causes: worn pump motor, failing components, or clogged fuel pump filter. - Defective fuel pump relay:
The relay might not be properly switching power to the fuel pump. - Poor electrical connections:
Loose or corroded fuel pump connections/wiring cause circuit resistance. - Damaged wiring or connectors:
Loose, corroded, or broken wires in the fuel pump circuit disrupt signals. - Failed Powertrain Control Module (PCM):
Rarely, a faulty PCM can trigger this code due to circuit control issues.
Risk Level of P0627 Error Code:
A high-risk level appears because this issue may lead to fuel delivery failure, causing the engine to stall or not start at all.
It means the problem needs immediate attention to prevent further damage to the fuel system or engine components.
Common Car Brands Affected by P0627 Code:
The P0627 engine error code is commonly found in the following list.
- Ford
- Dodge
- Nissan
- Honda
- Toyota
- Chevrolet
- Jeep
Video: P0627 Engine Error code
FAQ’s
What is P0627 Error Code?
The P0627 code indicates a malfunction in the fuel pump control circuit, preventing proper fuel delivery to the engine.
What Causes the P0627 Error?
Common causes include a faulty fuel pump, damaged wiring, a bad fuel pump relay, or a malfunctioning powertrain control module (PCM).
What is the Risk Level of P0627?
The risk level is high, as it can cause engine stalling, hard starting, or complete failure to start due to fuel delivery issues.
Which Vehicles Are Affected by P0627?
This error can affect various gasoline and diesel vehicles, including Ford, Dodge, Nissan, Honda, Toyota, Chevrolet and Jeep.