P027E

Symptoms

• Unstable engine operation during cold start
• Engine stalls on cold start
• Increased fuel consumption
• Reduced engine power

Causes

• Fuel pump malfunction
• Dirty or faulty fuel injectors
• Problems with the coolant temperature sensor
• Malfunction of the mass air flow sensor (MAF)
• Leaks in the fuel system
• Problems with the engine control unit (ECU)

How to Fix

1. Check the fuel pressure in the system
2. Clean or replace fuel injectors
3. Check coolant temperature sensor
4. Check the mass air flow sensor (MAF)
5. Check the fuel system for leaks
6. Check and, if necessary, replace the fuel pump
7. Scan the engine control module for other errors

Related codes

Error P027E by Vehicle Brand