P0118 Acura Code - Engine Coolant Temperature Sensor 1 Circuit High Voltage
Quick Answer
The P0118 code for Acura vehicles indicates that there is an issue with the Engine Coolant Temperature Sensor 1 Circuit registering a high voltage. Common causes include Faulty Engine Coolant Temperature Sensor, Corroded or damaged sensor wiring, Malfunctioning thermostat. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0118 Acura indicates Engine Coolant Temperature Sensor 1 Circuit High Voltage.
- Common causes
- Common causes include Faulty Engine Coolant Temperature Sensor, Corroded or damaged sensor wiring, Malfunctioning thermostat.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0118 Acura Description
The P0118 code for Acura vehicles indicates that there is an issue with the Engine Coolant Temperature Sensor 1 Circuit registering a high voltage. This sensor is responsible for monitoring the temperature of the engine coolant, providing crucial data to the engine control module (ECM) for proper fuel delivery and ignition timing. When the sensor reports a high voltage, it typically means that the engine is running hotter than it should be, and the ECM may compensate by adjusting the fuel mixture to prevent overheating.
Common Causes of P0118 Acura
- Faulty Engine Coolant Temperature Sensor
- Corroded or damaged sensor wiring
- Malfunctioning thermostat
- ECM malfunction
- Coolant leak or low coolant level
Symptoms of P0118 Acura
- Check Engine Light illuminated on the dashboard
- Engine running hotter than normal
- Decreased fuel efficiency
- Rough idling or stalling
- Difficulty starting the engine
How to Fix P0118 Acura
- Begin by diagnosing the issue with a scan tool to confirm the P0118 code and identify the specific cause.
- Inspect the Engine Coolant Temperature Sensor and its wiring for any damage or corrosion. Replace the sensor if necessary.
- Test the thermostat to ensure it is functioning correctly. Replace it if it is stuck open or closed.
- Check the coolant level and system for leaks. Repair any leaks and top off the coolant as needed.
- Clear the code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0118 Acura
The cost to repair a P0118 code in an Acura vehicle can vary depending on the specific cause of the issue. Generally, the price range for parts such as a new Engine Coolant Temperature Sensor or thermostat is around $50 to $150. Labor costs can also vary, with hourly rates typically ranging from $80 to $150. Overall, the total repair cost for this issue could range from $150 to $400 or more, depending on the extent of the problem and the labor rates in your area. It's advisable to consult with a qualified mechanic for a more accurate estimate based on your vehicle's specific needs.
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Frequently Asked Questions about P0118 Acura Code
1. What are the common symptoms of OBDII code P0118 in an Acura?
The common symptoms of OBDII code P0118 in an Acura include engine overheating, rough idling, poor fuel economy, and the Check Engine light illuminating.
2. What can cause the Engine Coolant Temperature Sensor 1 Circuit High Voltage code in an Acura?
The Engine Coolant Temperature Sensor 1 Circuit High Voltage code in an Acura can be caused by a faulty coolant temperature sensor, wiring issues, low coolant levels, or a malfunctioning engine control module.
3. How does a high voltage reading from the coolant temperature sensor affect the vehicle's performance?
A high voltage reading from the coolant temperature sensor can cause the engine to run too cold, resulting in poor fuel efficiency, increased emissions, and potential damage to engine components due to improper temperature regulation.
4. Can I drive my Acura with the P0118 code?
It is not recommended to drive your Acura with the P0118 code, as it can lead to engine overheating and potential damage. It's best to address the issue promptly to prevent further problems.
5. How can I repair the Engine Coolant Temperature Sensor 1 Circuit High Voltage code in my Acura?
To repair the P0118 code in your Acura, start by checking the coolant level, inspecting the wiring and connectors for any damage, and testing the coolant temperature sensor. Replace any faulty components as needed.
6. Will resetting the Check Engine light make the P0118 code go away?
Resetting the Check Engine light may temporarily turn off the light, but it will not fix the underlying issue causing the P0118 code. It's important to diagnose and repair the problem to prevent further issues.
7. Are there any DIY tips for troubleshooting the P0118 code in an Acura?
You can start by visually inspecting the coolant temperature sensor and its wiring for any visible damage. Additionally, checking the coolant level and ensuring the radiator is functioning properly can help diagnose the issue.
8. How much does it cost to repair the P0118 code in an Acura?
The cost of repairing the P0118 code in an Acura can vary depending on the cause of the issue and the labor rates in your area. It's recommended to get a diagnostic from a professional mechanic to determine the exact cost.
9. Can a faulty Engine Coolant Temperature Sensor affect other systems in the vehicle?
Yes, a faulty Engine Coolant Temperature Sensor can affect other systems in the vehicle, such as the fuel injection system, emissions control, and overall engine performance. Addressing the issue promptly is crucial to prevent further complications.
10. Is it safe to continue driving my Acura if the P0118 code is intermittent?
It is not advisable to continue driving your Acura if the P0118 code is intermittent, as it indicates a potential issue with the coolant temperature sensor or related components. It's best to have the problem diagnosed and repaired to avoid any further issues.
Discuss the causes and fixes for P0118 Acura OBDII Code
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Replacement Instructions:
-Drain the engine coolant.
-Remove the intake manifold.
-Disconnect the ECT sensor 2P connector (A).
-Remove the ECT sensor (B).
-Install the sensor in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open. -
I went to autozone and they scanned my car 2006 tsx and came up as ect sensor so i change d and drained all the coolant but did not refill the coolant can this be the reason why light is still on
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You can either clear the code with a scanner or by disconnecting the battery.
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Well now ill refilled the coolant bleed the radiator and have the car running and the gauge is now going up and down cab this be the sensor
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I figure it out i over tighten the sensor on radiator sensor so it was reading wrong
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My dad's 97 Acura tl 3.2 is having this code and the car will not turn over when the key is turned.. are these related issues? He is also showing code p1791 how can we resolve these?
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The P0118 code is for the Coolant Temperature Sensor and the P1791 for the Vehicle Speed Sensor, but neither of the two sensor should cause the no crank problem. The coolant temperature sensor could cause a hard start, but the engine should start.
P1791 ACURA - Vehicle Speed Sensor Range/Performance Problem
Read more: https://www.autocodes.com/p... -
Disconnect the sensor, then using a tool remove the old sensor and install the new one in reverse order.
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