Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

We had loss of power on our Audi A3 recently. The coil and DPF warning lights came on at the same time. We called the RAC and they reported "Air mass flow during regeneration too high" and told us to ...

In the diesel performance world, Ford 6.0L Power Stroke engines have a bad reputation for blowing head gaskets and sticking EGR valves when owners modify them. There are a number of reasons why people ...

I have a 2009 Peugeot 3008, 1.6 HDI with 110,000 miles recorded. I have owned it for three months. Recently the engine light has come on several times, and gone off again, and then came on permanently ...

Your engine’s manifold absolute pressure (MAP) sensor is your little buddy. Buried somewhere in the stream of your charged intake air (usually in the manifold), it employs a little ceramic or silicone ...