What Does 7e8 Engine Code Mean and How to Fix It

Having a car for the first time can be overwhelming, especially if you do not know much about the occasional dashboard lights and error codes. Moreover, without adequate knowledge of the characteristics, measurements, and specifications, anything could be a matter of concern. 

The 7e8 engine code, for instance, may be displayed when the OBD scanners want to obtain more information such as a particular component to check on. Therefore, it is not a matter of concern. It is possible that you see this engine code due to a temporary misread of the engine sensor. To fix it, you are required to clear the Check Engine light or use a scanner to reset the CE. 

This article helps you decipher what some of the engine codes mean. Some of them mean no alarm, while others may require an immediate response.  

What Does the 7E8 Engine Code Mean?

The engine is the most vital part of any automobile. It plays a vital role of translate the heat assimilated through the burning gas to produce a force that turns the vehicle. Hence, the last thing we need to see is an error code that is related to the engine. But not all codes indicate a problem.  

The 7E8 code is not necessarily a trouble code. Usually, the onboard diagnostic scanners are likely to display this engine code when it needs more info like which component group to check. Moreover, the engine light may come on due to a temporary misread of an engine sensor. When the error code 7E8 appears alongside 7EA, it could mean something else.

Symptoms Accompanying the 7e8 Engine Code

  1. Check Engine Light: This is typically the first sign of an issue.
  2. Poor Fuel Efficiency: A significant drop in your vehicle’s fuel economy can be a symptom.
  3. Reduced Engine Performance: A decrease in power or acceleration can be noticed.
  4. Rough Idling or Stalling: The car might run rough, especially when idle, or stall unexpectedly.
  5. Strange Noises: Unusual sounds from the engine can indicate a problem.

How Do I Fix Engine Code 7e8?

What Does 7e8 Engine Code Mean and How to Fix It

Fixing the engine code 7E8 is not a complicated process. The equipment you need most for this is your car scanner. The first step is to replace the fuel cap and then use the scanner to clear the engine codes.

Afterward, you should run an EVAP leakage test using the car scanner. Moreover, you are required to check the fuel level in the tank (using the scanner). The recommended fuel level should be between 15% and 80%. The last step is to perform a smoke test on the EVAP system. Following these steps after insertion should make the code disappear.  

It is advisable to check your car’s EVAP system every 10,000 miles or once a year, depending on which comes first. Engine problems tend to be serious and can easily render your car dangerous to drive. Therefore, you should have them checked and fixed as soon as possible. 

What Is the 7e8 Engine Code For?

The 7E8 is more of a menu for the engine data stream than a code. It represents the data stream of the car’s engine and also indicates air pressure loss in the evaporative emission control system.

Often, when this engine code comes up, it implies an engine powertrain. Engine codes help you to identify any potential engine problems so you can decide whether it is safe to drive. They monitor the engine performance and signal any problems that need fixing in good time.

Also Read: How to Reset Oil Light on Honda Accord

What Causes Engine Code 7e8?

There are different reasons that prompt the 7E8 engine code to come up. It could mean one of the following reasons: 

  • A missing or damaged fuel filter cap 
  • A faulty or damaged fuel filler pipe 
  • A faulty canister 
  • The fuel vapor lines may be leaking, disconnected, or plugged. 
  • A faulty CCV (Canister close valve)
  • A faulty FTPS (Fuel tank pressure sensor)
  • A faulty seal of the fuel pump 
  • A fault PCSV (Pressure/purge control solenoid valve)

What Does Error Code 7e8 Mean?

The 7E8 error code is considered a general error code. If your vehicle emits this error code, it means that it is having trouble with the emission system. You can use a multipurpose OBD scanner to find this error. 

Also Read: How Much Charge Does a Car Battery Need to Start

What Is the Difference Between 7e8 and 7e9?

The 7E8 engine code implies an engine powertrain while the 7E9 implies the transmission powertrain—this is the main difference. However, both of them work to control the module menu. When the 7E8 error code flashes, you should think of engine control issues. If it is the 7E9, it has to be something to do with transmission management.  


What Is An Engine Code?

An engine code, vehicle identification number, or engine number is used to categorize the different types of engines. Usually, they are located on the lower corner of the windshield on the driver’s side. You can use the engine code to identify the engine type and engine model of your automobile. However, if you are experiencing any difficulty with the engine code, you can make use of an auto-code reader.

How Long Can You Drive With The Check Engine Light On?

If the check engine light is on for whatever reason, it is possible to drive on for a couple of hundreds of miles without any problems. This will depend on which code is stored in the car’s computer. If your engine sensor is faulty, the car tends to use made-up sensor values so it keeps running. 

How Much Does It Cost To Fix Error Code 7e8?

If the error code flashes in your car, it is important to take effective action as soon as possible on the emission control system. You need to have the car taken through a proper diagnosis of the problem so you can make the necessary replacement before you have to deal with a leak. Such replacement will cost you around $480 to $600 which will work to keep your car running for longer. 

Can I prevent the 7e8 engine code?

While you can’t entirely prevent the 7e8 engine code due to its varied causes, regular vehicle servicing, using quality fuel, and avoiding aggressive driving can minimize the risk.

When should I seek professional help for the 7e8 engine code?

If you’re unable to identify the problem, if the repair process is beyond your skill level, or if the issue persists after your attempts at repair, it’s time to consult a professional mechanic.

Is it safe to drive my car with the 7e8 engine code showing?

While the car might still be drivable with the 7e8 engine code showing, it’s generally not advised. The code indicates an issue with your engine that could potentially lead to more severe damage if not addressed promptly.

Final Thoughts

Automobiles are fitted with an onboard diagnostic system which is there to help you (or your mechanic) understand any problem through the codes displayed. Error codes 7E8 and 7E9 usually indicate engine problems. Thankfully, these can be easily fixed by a mechanic.