Hey guys,

i have a 2001 tdci focus and im trying to find out why car is sometimes hestitent when cold sometimes jerky when accelerating . I thought it may be coolent temp sensor giving wrong signal,so it may increase or decrease fuel metering. Ive tested the MAF sensor and intake air sensor in the intercooler and they are all within spec. Autodata gives the coolent temp sensor 2.7v when cold and 3.6v when hot for the coolent temp sensor, but Im getting 15.3v when the engine is running. Is this reading normal??
Im putting the multimeter red probe in the back of the multiplug that is connected to the sensor and the black probe to earth.

Thanks

Simon