P0238 Code - Turbocharger/Supercharger Boost Sensor 'A' Circuit High
Quick Answer
The Boost Pressure Sensor responds to pressure changes in the intake manifold. Common causes include Faulty Boost Pressure Sensor, Boost Pressure Sensor harness is open or shorted, Boost Pressure Sensor circuit poor electrical connection. 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
- P0238 indicates Turbocharger/Supercharger Boost Sensor 'A' Circuit High.
- Common causes
- Common causes include Faulty Boost Pressure Sensor, Boost Pressure Sensor harness is open or shorted, Boost Pressure Sensor circuit poor electrical connection.
- 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.
Code P0238 Description
What are the Possible Causes of the DTC P0238?
- Faulty Boost Pressure Sensor
- Boost Pressure Sensor harness is open or shorted
- Boost Pressure Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
- Engine over temperature
How to Fix the DTC P0238?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0238 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0238 code?
Need more information on how to fix the P0238 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0238 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P0238 Acura — Turbocharger Boost Sensor Circuit High Voltage
- P0238 Audi — Turbo/Super Charger Boost Sensor 'A' Circuit High
- P0238 Chevrolet — Turbocharger Boost Sensor Circuit High Voltage
- P0238 Chrysler — MAP Sensor Voltage Too High
- P0238 Dodge — MAP Sensor Voltage Too High
- P0238 Ford — Turbo/Boost Sensor 'A' Circuit High Input
- P0238 GMC — Turbocharger Boost Sensor Circuit High Voltage
- P0238 Honda — Turbocharger Boost Sensor Circuit High Voltage
- P0238 Isuzu — Turbocharger Boost Sensor Circuit High Voltage
- P0238 Jeep — MAP Sensor Voltage Too High
- P0238 Mercedes-Benz — Turbocharger/Supercharger Boost Sensor 'A' Circuit High
- P0238 Nissan — Turbocharger Boost Sensor Circuit High
- P0238 RAM — MAP Sensor Voltage Too High
- P0238 Volkswagen — Turbo/Super Charger Boost Sensor 'A' Circuit High
- P0238 Volvo — Boost Pressure Sensor Signal Too High
Frequently Asked Questions about P0238 Code
1. What are the common symptoms of OBDII code P0238?
- Common symptoms include reduced engine power, engine hesitation, rough idling, and in some cases, the vehicle may go into limp mode.
2. What can cause the Turbocharger/Supercharger Boost Sensor 'A' Circuit High code P0238?
- The code P0238 is often caused by a faulty boost pressure sensor, damaged wiring or connectors, a malfunctioning turbocharger or supercharger, or a problem with the engine control module.
3. How serious is the OBDII code P0238?
- The P0238 code should be addressed promptly as it can lead to reduced engine performance and potential long-term damage to the engine if left unresolved.
4. How can I diagnose the Turbocharger/Supercharger Boost Sensor 'A' Circuit High code P0238?
- Diagnosis involves checking the boost pressure sensor, inspecting the wiring and connectors for any damage, testing the turbocharger or supercharger functionality, and scanning the engine control module for related error codes.
5. Can I still drive my vehicle with the OBDII code P0238?
- It is not recommended to drive the vehicle with the P0238 code present, as it can lead to further damage and potentially unsafe driving conditions due to reduced engine power.
6. How can I repair the Turbocharger/Supercharger Boost Sensor 'A' Circuit High code P0238?
- Repairing the P0238 code may involve replacing the boost pressure sensor, repairing or replacing damaged wiring or connectors, addressing any turbocharger or supercharger issues, or reprogramming the engine control module.
7. Will resetting the check engine light fix the OBDII code P0238?
- Simply resetting the check engine light will not fix the underlying issue causing the P0238 code. It is important to diagnose and repair the root cause of the problem to prevent the code from reoccurring.
8. How much does it typically cost to repair the Turbocharger/Supercharger Boost Sensor 'A' Circuit High code P0238?
- The cost of repairing the P0238 code can vary depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.
9. Can a DIY enthusiast fix the OBDII code P0238?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the P0238 code themselves by following diagnostic procedures and replacing components like the boost pressure sensor or repairing wiring issues.
10. How often does the Turbocharger/Supercharger Boost Sensor 'A' Circuit High code P0238 occur in vehicles?
- The P0238 code is not uncommon in vehicles with turbochargers or superchargers, especially in older models or those subjected to harsh driving conditions.
Discuss the causes and fixes for P0238 OBDII Code
-
Hello
I have a Fiat panda 1.3 multijet from 2004.
In my case, first appear code P0106 - MAP/BARO CKT Range/Perf, than, after replacing the sensor, than at 3000 rpm began to appear the code P0238. what should I check now
-
Hello I have a ford ranger made in argentina, I had fix the turbo but it I still have the code of p 0238 when scanned and erased the car will run in perfect condition, but when turned the enigine off, the code will come again and it does have power, will some please help me with this, I am from Guatemala so please sorry for my english witch is not that good. thank you . .
-
Que modelo y año es su Ranger? Desafortunadamente solo tenemos los manuales de vehículos hechos en US, peso posiblemente le podríamos ayudar. . También somos de Guatemala
-
Most likely you have a T-MAP sensor problem. Oftenly the problem is related to broken wiring or bad connection.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
