U0260 Pierce-arrow 8 Diagnostic Trouble Code
U0260 Pierce-arrow 8 code definition:
U0260 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code for Pierce-arrow 8.
U0260 Pierce-arrow 8 is defined as Knock Sensor Circuit Range Performance (Bank 1 or Single Sensor). This refers to camshaft timing, which in this case is over-retarded. The PCM then uses this data to provide the right strategies for the fuel delivery and ignition timing of the engine.
Symptoms
Symptoms of a U0260 Pierce-arrow 8 diagnostic trouble code may include:
- Blown fuse (if applicable)
- Engine surge
- Reduction in engine performance, especially at low RPM levels
- Malfunction Indicator Lamp (MIL) illuminated
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Possible Causes :
- A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
- Some aftermarket accessories and performance modifications
- Dirty air cleaner element Damaged DPF
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Common Misdiagnoses
- Crankshaft Position Sensor Circuit Performance Problem
- TP Sensor Learn Not Complete Problem
- Low Coolant Circuit Problem
- Cruise Control System - Vehicle Accel Too High Problem
- Kick-Down Switch Failed Short Problem
Repair Processes :
Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.
Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.
Process Tips
Diagnostic trouble code U0260 Pierce-arrow 8 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before U0260 Pierce-arrow 8.
Fortunately, U0260 Pierce-arrow 8 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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