What is the 7E8 Engine Code for Kia?

The 7E8 engine code indicates a possible issue with a Kia vehicle’s fuel or air intake. This code can be seen when the knock sensor detects vibrations from the engine. It represents data sent by the car’s engine about air pressure loss of the evaporative emission control system.

What is the 7E8 Engine Code for Kia?

The 7e8 code indicates the engine powertrain at the Kia. Usually,  your Kia vehicle faces fuel or air intake issues. In most cases, the main problem is fuel filler cap damage or missing.


7E8 engine code

Possible causes see 7E8 code are:

  • Leaking, disconnected or plugged fuel vapor lines
  • Fuel filler cap damage or missing
  • Faulty Canister
  • Faulty seal of the fuel pump
  • Faulty CCV (Canister Close Valve)
  • Faulty FTPS (Fuel Tank Pressure Sensor)
  • Faulty PCSV (Pressure/Purge Control Solenoid Valve)
  • The defective or damaged fuel filler pipe

You can read our detailed article about the 7E8 engine code.

There are several possible causes for this code to appear, such as leaking, disconnected, or plugged fuel vapor lines; damage to or missing fuel filler cap; faulty fuel filler pipe; faulty canister; faulty CCV (Canister Close Valve); faulty FTPS (Fuel Tank Pressure Sensor); faulty PCSV (Pressure/Purge Control Solenoid Valve); and damaged seal of the fuel pump.

To diagnose and resolve any issues related to this code, mechanics will usually start by checking all hoses and connections associated with the EVAP system for leaks. EVAP systems are used to store gas fumes that have been created through everyday use, and if these fumes are not captured correctly due to a leak, then it will cause an incorrect reading within the car’s computer system. The seals around these components might also need replacing if they have worn down over time.

The FTPS sensor may need replacing if it is malfunctioning due to corrosion or damage caused by heat. The PCSV control solenoid valve may also need replacing if it has become clogged or jammed due to dirt and debris build-up over time. This can be done either manually or using a scanner tool that allows mechanics access to the car’s computer system to perform repairs accurately and efficiently.

Finally, if any of these components have failed, then there could be an issue with how much fuel is consumed, leading to higher emissions levels than usual. This can be resolved by changing some settings within the computer system to increase efficiency and reduce emissions levels again back down below standards set out by law enforcement bodies.

You must take your car regularly to a qualified mechanic who has experience in diagnosing and repairing Kia cars so that they can identify any potential issues before they become more serious problems – many of which could end up costing you more money in repair costs than necessary if left unchecked for too long a period.

Robert Aksamit

Robert Aksamit

Robert Aksamit is a mechanical engineer and automotive industry expert. Robert was born in Minnesota and worked in the US automotive industry for 25 years. He is highly regarded for his passion and dedication to continually improving vehicles in response to customer feedback. Robert has a keen eye for sourcing the best vehicle components and materials on the market and is always looking for ways to enhance the user experience. As a writer, Robert covers automotive-related topics. Read more on Robert Aksamit's about page. Contact Robert: robert@promtengine.com

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