aaronraven88
Fluence Charge Air Temperature Sensor Error
Summary of the thread
A 2012 Renault Fluence owner reported a charge air temperature sensor error, accompanied by reduced engine power, a whistling noise, and a loud hissing sound upon acceleration. Initial inspection suggested a potentially defective cable or plug connection. It was advised to check for leaks in the intake tract, as even minor leaks could cause significant symptoms. The issue was resolved by inspecting and repairing the cable or plug connection, confirming the initial suspicion.
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4 comment(s)
aaronraven88 (community.author)
Thank you for the reply. I haven't performed a thorough check for leaks beyond a visual inspection of accessible hoses. Could a small leak truly manifest with such pronounced symptoms, specifically the restricted performance? And no, no prior work has been performed on the intake or turbo.
andreasmond1
A leak, even a minor one, can disrupt the mass airflow and temperature readings, impacting engine management and resulting in power loss. Given the error code and symptoms, I recommend a professional diagnostic assessment to pinpoint the source of the fault. The cable or plug connection needs to be inspected with specialized tools.
aaronraven88 (community.author)
Understood. I appreciate the insight. I proceeded to have a workshop inspect the cable or plug connection of the component. Indeed, this was the issue, and the repair cost 95€ Thank you.
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RENAULT
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FLUENCE
andreasmond1
The symptoms you describe certainly point to a problem within the charge air system. Before condemning the sensor itself, have you verified the integrity of the entire intake tract for leaks? A breach could cause temperature fluctuations and trigger the fault. Any recent work done on the intake or turbo?