P078E OBD Error Code: Problem & Solutions

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Is your shift timing solenoid faulty? Is the connection irregular? Does the code P078E appear often? Vehicles that are well fitted with automatic transmission will eventually have this type of trouble code in your vehicle. Based on your driving needs, the shift timing solenoid will allow the automatic transmission to shift flawlessly. There are many shift solenoids in your vehicle and the particular letter can help you to identify as to which solenoid is facing error code.

When there is one more issue in the circuit or the shift timing solenoid, then the ECM will detect this, and the P078E error code will be stored causing the illumination of the malfunction Indicator lamp. If this error code is stored, it means that the connection is irregular or a malfunction is caused in the solenoid or the circuit.

What causes this problem with the Shift Timing Solenoid A Range/Performance?

• Shift timing solenoid might face damage.
• Automatic transmission fluid is muddy.
• ATF level is very less.
• Damaged wiring harness.
• TCM seems to be defective.
• Troubling ECM.
• ATF passage has obstacles.
• Connector/ pins are molten.

1. Shift Solenoid - Are you looking for the right replacement part for this damaged component? Get them from Parts Avatar to avoid P078E error code.
2. Shift Valves - Inspect the component if they are damaged or broken. Defective parts needs immediate replacement.
3. Engine Light - The engine light will glow too bright if it is defective. Change them soon to avoid P078E error code.
4. Transmission Filter - Perform a visual inspection of this component for damages or any blocks. Replace them with the right part and clear blockages. 
5. Transmission Valve Body - The system will malfunction if this component is faulty. Change them with the right parts. 
6. Connector - Are the terminals damaged? Are they broken? Then it is a good idea to fix the issue immediately.
7. Powertrain Control Module - If you want to avoid the P078E error code, then this faulty component must be fixed.

Next important thing you need to know about are the common symptoms for this OBD error code P078E with your fuel volume control.

Common Symptoms

• Gears are blocked.
• Improper shifts.
• Transmission may slip.
• Shift timing is not as expected.
• Vehicle might face drivability issues.
• Weak acceleration.
• Overall performance seems very poor.

Wish to correct this error code with your vehicle? Do you know what all you should do to make your car free from this code? Well, don’t worry! We are here to guide you.

• You can change the shift valves/ shift solenoids.
• Transmission filter blocks needs to be cleared.
• The PCM/connectors that are faulty needs replacement.

If you need any parts to fix this problem you can easily find them with us. Not only that we also have in stock the best in range auto parts and that too at the most budget friendly prices ever online. Whether you need a shift solenoid, shift valves, engine light, transmission filter, transmission valve body, connector, wiring, Powertrain Control Module, you can simply rely on us for quality auto parts.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• Firstly, the technician will check the ATF- if the level is correct or less, if the color is different and if it has bad odor like burnt smell. If you have drove your vehicle to about 30,000 to 60,000 miles and still don’t remember as when you lastly changed the fluid then this can be one of your problem, or maybe you would have avoided because of your maintenance schedule. It’s best if you change the dirty fluid and remove the blocks.
• Is the symptom appearing again? Then access your shift solenoid externally depending on your vehicle’s model and make. You can also check and replace the damaged connectors, wiring harness and the solenoid. Clean if there are any leaky areas.
• Testing the solenoid is very important. You can test them in multiple ways like performing a resistance test where with the help of multimeter you measure the resistance. Also, you can manually apply voltage to check the mechanical operation of the solenoid. Either one of the information will be available in your vehicle’s service manual.
• Carry out the same test as above of the TCM, to test the functionality of the sensor and its circuit. But here, you will connect the pins to PCM/TCM. This trick can help you to verify the integrity of both the circuit and sensor of the solenoid.

Common Mistakes When Diagnosing the P078A Code

• Improper TCM.
• Transmission fluid is less.
• Transmission shift solenoid is imperfect.
• Broken transmission body valve.