gertjohnson29

Clio Turbo Issues

I'm having issues with my 2007 Renault Clio, gasoline engine. The check engine light is on, and I'm experiencing jerking when accelerating. I hear whistling and loud hissing when I accelerate. Sometimes, the engine stalls when idling. I seem to be getting worse fuel consumption, and the engine feels like it's lost power. The car has about 209019 km on it. I have read that a defective cable or plug connection to the boost pressure sensor could cause this. Could it be something with the turbo system?

4 comment(s)

Sounds like your turbo system is under the weather! Think of the boost pressure sensor as the turbo's informant, telling the engine's computer how much extra air it's getting. When it's faulty, the engine doesn't know how to react, hence the jerking, hissing, and power loss. Has the check engine light come on?

Thanks for the quick reply! Yes the check engine light is on. Is there any way to be sure it's the boost pressure sensor before I replace it? I'm trying to avoid throwing money at the problem without a proper diagnosis.

Given the check engine light, it's highly probable the boost pressure sensor is the culprit. If the cable or plug is defective the signal can not be transmitted. Given all of the symptoms you are seeing, especially the hissing sound which can originate from the air intake, it is probably best to get it checked in a workshop. You can probably not fix it yourself.

Thank you so much for your help! I took it to a local mechanic, and you were right – it was indeed the boost pressure sensor! Apparently, the cable connector was corroded. They replaced the sensor and cleaned up the connection. Total cost was 95€. The car is now running great again!

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