What does code P0253 mean?
Low signal detected in fuel metering control circuit A
OBD-II Code
P0253 — Injection Pump Fuel Metering Control A Low Input Cam Rotor Injector
Low signal detected in fuel metering control circuit A
Common symptoms
- Low power
- black smoke
Possible causes
- Signal wire shorted to ground
- low pressure pump
Initial recommendation
Inspect wiring, measure pressure and check metering solenoid.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0253 with your vehicle's actual symptoms for more complete diagnostic guidance.
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