C0302 Renault Eighteen Diagnostic Trouble Code
C0302 Renault Eighteen code definition:
C0302 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code for Renault Eighteen.
C0302 Renault Eighteen is described as Fuel System Too Rich, which basically means bank 1's oxygen sensor has detected a rich condition of fuel. This means there's not enough oxygen in the exhaust from too much fuel being delivered into the air and gas mixture for combusion. 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 C0302 Renault Eighteen diagnostic trouble code may include:
- Corroded or damaged connector
- If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
- Lack of power
- 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 :
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
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Common Misdiagnoses
- IC Circuit High Voltage Problem
- 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
- PCM Stack Overrun Problem
Repair Processes :
Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.
Now, clear the codes and test-drive the vehicle to see if the code is reset.
Process Tips
Diagnostic trouble code C0302 Renault Eighteen 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 C0302 Renault Eighteen.
Fortunately, C0302 Renault Eighteen is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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