Tarek Posted June 25, 2015 Share Posted June 25, 2015 Hi fellow Focus owners I am having an issue with a small hose in my 2009 MK2 Focus 1.8 TDCI. the hose which is located in top of the EGR (see the attached image) comes out of its place after hard accelerations so I have to put it back every time. my question is what does it do exactly, and why am I having this problem, many thanks for your help. regards Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted June 25, 2015 Share Posted June 25, 2015 It's your MAP sensor feed pipe. The MAP sensor is the black box on the other end of the pipe. It measures the pressure of the intake air and in conjunction with the air temp sensor the computer determines the air mass so that it knows how much fuel to mix in. Quote Link to comment Share on other sites More sharing options...
dezwez Posted June 25, 2015 Share Posted June 25, 2015 try a wire tie on it Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted June 25, 2015 Share Posted June 25, 2015 You can get a whole new MAP sensor off eBay for £25.50 http://pages.ebay.com/link/?nav=item.view&id=261205812189&alt=web Quote Link to comment Share on other sites More sharing options...
Tarek Posted June 25, 2015 Author Share Posted June 25, 2015 I'll have my EGR checked and cleaned. If the valve is Ok and the problem persists then I'll change the MAP sensor. Thanks guys Quote Link to comment Share on other sites More sharing options...
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