P1187 KIA Code - Fuel Pressure Monitoring - Regulator Valve Stick
Quick Answer
Fuel pressure monitoring is used to detect the troubles and the fuel leakage in high pressure system. Common causes include Faulty Fuel Pressure Regulator (FPR), Faulty Rail Pressure Sensor (RPS), Engine Control Module (ECM). 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
- P1187 KIA indicates Fuel Pressure Monitoring - Regulator Valve Stick.
- Common causes
- Common causes include Faulty Fuel Pressure Regulator (FPR), Faulty Rail Pressure Sensor (RPS), Engine Control Module (ECM).
- 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 P1187 KIA Description
The Engine Control Module (ECM) determines the rail pressure value as a function of the engine’s operating conditions and controls the fuel pressure regulator to ensure that the rail pressure reaches the required value.
Fuel pressure in the fuel line including the pumps and injector are continuously monitored during engine running.
If the rail pressure is excessive, the fuel pressure regulator opens and a portion of the fuel is returned from the rail to the fuel tank via a collector line. If the rail pressure is too low, the fuel pressure regulator closes.
The fuel pressure regulator closes. the fuel pressure regulator is installed in the tail end of high pressure accumulator.
In case of the insufficient fuel supply in the fuel line, the engine symptoms will occur a shut down and a starting impossible.
If the fuel pressure monitoring in engine fuel pressure line generates threshold value, the ECM judged this as a fault and the P1187 code is set.
What are the Possible Causes of the DTC P1187 KIA?
- Faulty Fuel Pressure Regulator (FPR)
- Faulty Rail Pressure Sensor (RPS)
- Engine Control Module (ECM)
How to Fix the DTC P1187 KIA?
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 P1187 KIA 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 P1187 KIA Code
What does OBDII code P1187 mean on a Kia?
P1187 indicates an issue with the fuel pressure monitoring system, specifically a problem with the regulator valve sticking.
What are the common symptoms of code P1187 in a Kia?
Symptoms may include poor engine performance, difficulty starting, rough idling, reduced fuel efficiency, and the check engine light turning on.
What causes code P1187 on a Kia?
Common causes include a sticking fuel pressure regulator valve, fuel contamination, debris in the fuel system, or issues with the fuel pump.
Can I drive my Kia with code P1187?
Driving with this code is not recommended, as it may lead to further damage to the fuel system and poor engine performance.
How do you diagnose code P1187 in a Kia?
A mechanic will inspect the fuel pressure regulator valve, check fuel pressure using a diagnostic tool, and look for contamination or debris in the fuel system.
Can a dirty fuel filter trigger code P1187 on a Kia?
Yes, a clogged or dirty fuel filter can restrict fuel flow and contribute to fuel pressure issues, potentially triggering this code.
How can you fix code P1187 on a Kia?
Repairs may involve cleaning or replacing the fuel pressure regulator valve, replacing the fuel filter, or inspecting and cleaning the fuel pump and system components.
How much does it cost to fix code P1187 on a Kia?
Repair costs can vary widely, ranging from $100 to $500 or more, depending on whether components like the regulator valve or fuel pump need replacement.
Can fuel additives help clear code P1187 on a Kia?
In some cases, using fuel additives to clean the fuel system may help, but this is not a guaranteed fix and may not resolve mechanical issues.
What happens if code P1187 is ignored on a Kia?
Ignoring this code can lead to worsening fuel system problems, reduced engine performance, and potentially expensive repairs down the road.
Discuss the causes and fixes for P1187 KIA OBDII Code
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