P1185 Hyundai Code - Fuel Pressure Monitoring-Maximum Pressure Exceeded
Quick Answer
As input rail pressure sensor signal, the Engine Control Module (ECM) of the standard rail diesel engine controls Fuel Pressure Regulator Valve (integrated with a high-pressure pump) to maintain optimum rail pressure according to current engine rpm and load. Common causes include Faulty Fuel Pressure Regulator Valve (FPRV) stuck open, Faulty Fuel Rail Pressure Sensor (RPS), Fuel Rail Pressure Sensor harness is open or shorted. 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
- P1185 Hyundai indicates Fuel Pressure Monitoring-Maximum Pressure Exceeded.
- Common causes
- Common causes include Faulty Fuel Pressure Regulator Valve (FPRV) stuck open, Faulty Fuel Rail Pressure Sensor (RPS), Fuel Rail Pressure Sensor harness is open or shorted.
- 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 P1185 Hyundai Description
1. Supplying state of low-pressure fuel
2. Mechanical operating conditions of the high-pressure pump
3. Indirectly based on Rail Pressure Sensor (RPS) output voltage and RPS duty.
What are the Possible Causes of the DTC P1185 Hyundai?
- Faulty Fuel Pressure Regulator Valve (FPRV) stuck open
- Faulty Fuel Rail Pressure Sensor (RPS)
- Fuel Rail Pressure Sensor harness is open or shorted
- Fuel Rail Pressure Sensor circuit poor electrical connection
How to Fix the DTC P1185 Hyundai?
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 P1185 Hyundai 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.
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Frequently Asked Questions about P1185 Hyundai Code
1. What are the common symptoms of OBDII code P1185 on a Hyundai related to fuel pressure monitoring?
- Common symptoms may include engine hesitation, rough idling, poor acceleration, and potential stalling.
2. What are the possible causes of OBDII code P1185 indicating "Fuel Pressure Monitoring-Maximum Pressure Exceeded" on a Hyundai?
- Causes can include a faulty fuel pressure sensor, issues with the fuel pump, clogged fuel filters, or a problem with the fuel pressure regulator.
3. How can I diagnose the cause of OBDII code P1185 on my Hyundai?
- Diagnosis typically involves checking the fuel pressure using a fuel pressure gauge, inspecting the fuel pressure sensor for proper function, and testing the fuel pump and related components.
4. Is it safe to continue driving my Hyundai with the OBDII code P1185 triggered?
- It is not recommended to continue driving the vehicle with this code, as it can lead to potential engine performance issues and further damage if left unresolved.
5. Can I repair OBDII code P1185 on my Hyundai myself?
- Depending on your knowledge and experience with automotive repairs, you may be able to address the issue yourself by replacing the faulty components or cleaning/replacing clogged filters. However, professional diagnosis and repair are recommended for accurate troubleshooting.
6. What steps can I take to prevent OBDII code P1185 from recurring on my Hyundai in the future?
- Regular maintenance, such as changing the fuel filter at recommended intervals, using high-quality fuel, and addressing any fuel system issues promptly, can help prevent the code from reoccurring.
7. Will resetting the OBDII system clear the P1185 code on my Hyundai?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear once the system detects the problem again.
8. Is OBDII code P1185 related to emissions compliance on my Hyundai?
- Yes, this code is related to fuel pressure monitoring, which can impact fuel delivery and, in turn, emissions performance. Resolving the issue is important for maintaining proper emissions control.
9. How long does it typically take to repair OBDII code P1185 on a Hyundai?
- The repair time can vary depending on the exact cause of the code and the availability of parts. It may take a few hours to a full day for diagnosis and repair.
10. Can a mechanic clear the OBDII code P1185 on my Hyundai without fixing the issue?
- While a mechanic can clear the code using a diagnostic tool, it is essential to address the underlying problem causing the code to prevent further issues and ensure proper vehicle operation.
Discuss the causes and fixes for P1185 Hyundai OBDII Code
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hyundai poster 2008 ,sao khi gia công b?m cao áp , có hi?n t??ng t?t máy ? vòng tua trên 2500 rpm,báo 2 l?i p0087 và p1185 , ?ã thay van ?i?u ch?nh áp su?t nhiên li?u , thay c?m bi?n áp su?t ???ng ray, ?ã ki?m tra ti?p xúc các gi?c n?i ,và tín hi?u ?i?n ? các c?m bi?n ??u t?t ,?ã thay l?c d?u
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Engine start but shutdown with knoking if we relise prusser by opening desal prusser by injector than it start
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