Car is a xsara picasso, 2 litre hdi. I've only had the car a few days and it's engine management light will come on and off when it pleases. I find after a long run on the motorway, EML will turn itself off. My Dad was a mechanic back in the day so he came over and cleaned out the MAF sensor, which in turn, turned the EML off. Two days later and it came back on.. When it comes on the car will be REALLY sluggish for a bit until it's turned off. Assuming this is some kind of limp mode to protect the engine.
Checked the engine and the oil cap had come off? No idea how, the engine sheild has lost it's rubber mounts so the dealer said it had more than likely knocked it off. So replaced that today. Drove it for about 15 miles, turned engine off, back on a few hours later and the EML is off again.
I've noticed that the engine will surge whilst idling, when dropping down to first gear in traffic/or at lights. The fan belt can be a bit squeaky but it's an old car.
Basically my question is, would replacing the MAF sensor be a good idea? It's been degreased, but it looks like there's burnt bits of oil on the mesh? I have no clue if this is normal. What else could cause a surge in power when slowing down? It had a new fuel pump last year so i'm hoping that's not the issue.
Another thing i've noticed too, the oil temp gauge is amber? Always has been. Temp only rises to about two bars at the most in this weather. Normal or shoul d it be green?
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