martha_winkler1
Trafic Manifold Pressure Sensor Issue
Summary of the thread
A 2004 Renault Trafic with a gasoline engine is experiencing reduced engine power, poor response, and higher fuel consumption, leading to suspicion of a faulty manifold pressure sensor, possibly due to a vacuum leak. A similar case suggested checking for cracks or disconnections in the intake manifold area, as a vacuum leak can affect the MAP sensor readings. The issue was resolved by replacing the faulty manifold pressure sensor and addressing a large vacuum leak, restoring proper engine function.
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4 comment(s)
martha_winkler1 (community.author)
Thanks for the tip. I visually inspected the intake manifold and vacuum lines, but didn't spot anything obvious. How did you pinpoint the vacuum leak on your Trafic?
erikhofmann5
Well, I couldn't pinpoint the leak myself. I took it to a workshop, and they used a smoke machine to find a small crack in one of the hoses connected to the intake manifold. Apparently, it was enough to cause the engine to run poorly. The repair cost me 235€
martha_winkler1 (community.author)
Alright, thanks for sharing your experience. I'll probably take it to a workshop then. Turns out it was a faulty manifold pressure sensor and they found a large vacuum leakage, just like you said. Replacing the sensor fixed it.
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RENAULT
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TRAFIC
erikhofmann5
I also drive a Trafic. I had similar symptoms a while back. Did you check for any obvious cracks or disconnections in the intake manifold area? A large vacuum leak can definitely throw off the MAP sensor readings and cause those issues.