P0193 on Ford
Fuel Rail Pressure Sensor "A" Circuit High
P0193 on Ford vehicles indicates fuel rail pressure sensor "a" circuit high. Au7o has documented this code across 1 Ford model — most commonly on F-150. The PCM detects a fuel rail pressure sensor 'A' circuit signal above the normal range (too high), typically caused by a short to voltage, open ground, or failed sensor. Typical repair costs on Ford range from $50 to $15,000, depending on the specific model and root cause.
Common Causes of P0193
- •Short to voltage in signal wire
- •Open ground circuit
- •Faulty fuel rail pressure sensor
- •Corroded connector terminals
- •Wiring damage
P0193 on Ford by Model
Ford F-150(1 issue)
- 3.0L Power Stroke Diesel CP4.2 High-Pressure Fuel Pump Catastrophic Failure (Fuel System Contamination)2018-2020
The 2018-2020 F-150 3.0L Power Stroke diesel uses a Bosch CP4.2 high-pressure fuel pump. The CP4 was engineered for high-lubricity European diesel, not U.S. ultra-low-sulfur diesel, so its internal roller/cam followers can run dry and gall. Air ingress and cavitation accelerate the wear. When the pump fails it doesn't just stop — it 'grenades,' sending metal shavings throughout the entire high-pressure fuel system, destroying injectors, rails, lines, and the tank in a cascade. Owners have reported failures as early as ~48,000 miles, and the resulting whole-system replacement commonly runs $8,000-$15,000+. It is the single most catastrophic and most-searched issue for the F-150 diesel.
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What does P0193 mean on Ford?▼
P0193 stands for "Fuel Rail Pressure Sensor "A" Circuit High." The PCM detects a fuel rail pressure sensor 'A' circuit signal above the normal range (too high), typically caused by a short to voltage, open ground, or failed sensor. On Ford specifically, this code is documented across 1 model.
What causes P0193 on Ford vehicles?▼
Common causes on Ford: Short to voltage in signal wire, Open ground circuit, Faulty fuel rail pressure sensor, Corroded connector terminals, Wiring damage. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0193 on a Ford?▼
Repair costs on Ford range from $50 to $15,000, depending on the specific model and root cause.
Which Ford models have P0193 documented?▼
Au7o has documented P0193 on 1 Ford model: F-150.