Hi, my 2005 1.9 JTD is giving me problems. The engine warning light came on when I experienced a loss of power on hills. Changed AIR FILTER ( very dirty ) no difference. Changed MAF ( bought on E BAY ) no difference. Used cleaning product to clean out the air system, no difference. Unplugged MAF and took it for a test drive, HUGE DIFFERENCE. Drove like a new car, absolutey zoomed up hills. Any ideas what to check next ?. many thanks Caroline

Hi, found the problem. Air pipe lose at turbo, letting in air.

CarolineDaly said:

Hi, found the problem. Air pipe lose at turbo, letting in air.

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Glad you sussed out the problem. Easy for me to say now, leaks are a problem on older vehicles.