U0134 Subaru Pleo Diagnostic Trouble Code
U0134 Subaru Pleo code definition:
U0134 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code for Subaru Pleo.
U0134 Subaru Pleo is triggered when the bank 1 camshaft position sensor doesn't match the signal from the crankshaft position sensor. The spark should have a light tan color. If the sensor probe comes with white and chalky parts, this means it has been lagging between switching phases, and should be replaced.
Symptoms
Symptoms of a U0134 Subaru Pleo diagnostic trouble code may include:
- Excessive exhaust leak
- Hesitation upon acceleration
- Malfunction Indicator Lamp (MIL) illuminated
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
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Possible Causes :
- An air leak forward of the DPF will change the sensor readings resulting in the code
- Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
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Common Misdiagnoses
- Control Module Throttle Actuator Position Performance Problem
- Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
- Cruise Vehicle Speed/Set Speed Difference Too High Problem
- Kick-Down Switch Failed Short Problem
- Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit Problem
Repair Processes :
If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.
With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.
Process Tips
Diagnostic trouble code U0134 Subaru Pleo 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 U0134 Subaru Pleo.
Fortunately, U0134 Subaru Pleo is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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