What causes the P0088 fuel pressure too high in Magotan?

1 Answers
JordanAnn
07/29/25 5:10pm
p0088 fault refers to: abnormal fuel rail pressure (excessively high). Check whether the low-pressure fuel circuit has air ingress, whether the return fuel line is blocked, whether the rail pressure sensor or circuit is faulty, and whether the high-pressure pump is faulty. Rail pressure is one of the important factors to ensure the normal injection of the engine fuel injector. To maintain normal rail pressure, the fuel injection pump will continuously provide fuel pressure, and then maintain the rail pressure through the pressure switch (or sensor). Extended information: 1. Preventive measures: strictly follow the operating procedures and driving essentials to operate, try to avoid "gear grinding" when shifting gears to reduce gear wear; strictly implement the maintenance system and strengthen the maintenance of the shifting device. When the shifting device is improperly connected, it should be adjusted in time to ensure the shifting device performs well. 2. Precautions: pay attention to the maintenance of the self-locking mechanism, and repair or replace the positioning steel balls, springs and shift fork shafts that have reduced positioning effect or lost positioning efficiency in time to keep the self-locking performance of the self-locking mechanism in good condition; when assembling the transmission, strictly follow the operating procedures to ensure that all parts of the transmission are adjusted correctly and fastened properly. On larger downhill roads, the driver should strictly follow the downhill operating essentials and must not violate the rules.
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