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| __FORCETOC__
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| == P1025 - Fuel Pressure Regulation Valve (N276): Mechanical Failure ==
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| ==== Possible Symptoms ====
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| * Malfunction Indicator Light (MIL) ON
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| * High pitched whining noise from engine when idling.
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| * ECM may also have stored in memory, P0088 - Fuel Rail/System Pressure: Too High.
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| ==== Possible Causes ====
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| * Faulty High Pressure Fuel Pump
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| * Engine camshaft(s) out of time
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| ==== Possible Solutions ====
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| * Replace faulty High Pressure Fuel Pump
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| * Correct camshaft timing issues
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| ==== Special Notes ====
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| * NAR (North American Region) VW Tech Tips 01-16-05 and 01-20-05 for vehicles with the 3.6L engine has information testing for possible timing chain issues.
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| ** https://static.nhtsa.gov/odi/tsbs/2016/MC-10096053-0699.pdf NHTSA
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| ** https://static.nhtsa.gov/odi/tsbs/2020/MC-10180093-0001.pdf NHTSA
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| *** Check camshafts phase adjustments, if [8 degrees(+/-)] or more the engine is considered out of time.
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| **** MVB group [208] and [209] with engine idling for non UDS ECMs
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| **** IDE00182 and IDE00184 with engine idling for UDS ECMs
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| * RoW (Rest of World) users may find TPI 2040216/1 helpful.
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| * When found in gas models with a remote battery such as the Q7, P0088 may be stored due to voltage drop issues. TSB 2025746 applies to the NAR market.
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| [[Category:Fault Codes]]
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