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2001 Ford Ranger P1747 and P1451 OBD2 Error Codes: Causes, Symptoms, and Fixes

Model: 2001 Ford Ranger Fault Code: P1451 Posted: 2015-02-18 19:16

I own a 2001 Ford Ranger 4x4 that was running smoothly until I stopped at a store. Upon exiting, the check engine light illuminated and the overdrive (OD) indicator began flashing. After connecting an OBD2 code reader, I received multiple fault codes: P1747, P1451, PO135, PO141, PO155, PO743, PO750, PO755, and PO760. The issue appears to be severe — the vehicle runs poorly and barely made it home. I checked the fuses and found fuse #41 (20 amps) blown, which is reportedly associated with oxygen sensors and emissions systems. This fuse keeps blowing, suggesting a possible short circuit in that circuit. I'm concerned this could indicate an underlying electrical fault or wiring issue. It's unusual for so many codes to appear simultaneously — especially those related to under-the-vehicle components like the oxygen sensor and transmission system. Could environmental factors such as deep water exposure, flooding, snow, or off-roading have caused damage? I'm seeking advice from others who may have experienced similar issues with their 2001 Ford Ranger. The vehicle is currently unreliable and requires immediate attention to ensure safety and drivability.

Related fault codes
P1451P1747
Comments (4)
Anonymous 2015-02-19 08:45

It's possible that all these codes are linked by a common cause. Many of them relate to systems under the vehicle — such as oxygen sensors and transmission components. Environmental exposure like flooding, deep water, snow, or off-road driving could have caused electrical damage or short circuits in these systems.

Anonymous 2015-10-26 16:22

I have a 2001 Ford Ranger with the exact same symptoms: running fine one minute, then after stopping at a stop sign and attempting to move off, the check engine light comes on and the vehicle becomes unresponsive in any gear. I replaced all ignition-related components (spark plugs, coils, etc.), and it runs smoothly at idle. However, when shifting into gear, it fails to move — requiring manual assistance to start moving.

Anonymous 2017-03-28 17:48

I experienced a similar issue with my 2001 Ford Ranger. The vehicle showed P0453 (high pressure) and P1451 (vent circuit fault), and while it was still running, the accelerator pedal became unresponsive and gauges began behaving erratically. After about five minutes, it stalled completely. It took roughly ten minutes to restart, and I managed to drive home safely. Since then, no issues have occurred — but I remain cautious for longer commutes. I inspected the wiring and found one of the vent canister wires was broken and shorted. I replaced a few inches of wire where it was clean and reconnected it. After restarting, the same codes remained. I'm now checking fuses to determine if there's an underlying electrical fault.

Anonymous 2017-03-29 18:19

If fuse #41 is a 20-amp fuse located in the underhood or engine compartment, it typically powers systems related to transmission and emissions. To accurately identify which components are powered by this fuse, a detailed wiring diagram for the 2001 Ford Ranger would be required. Without that, diagnosing the exact circuit affected remains challenging.