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Mark1eboy

Engine Management Light On

8 posts in this topic

Hi can anyone help. I've a 2003 focus st170. The engine management light has come on. I've done a self diagnostic and it's coming up with no dtc codes. Can anyone help?

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have it plugged in to a diagnostic machine and it should give you a code

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I have and it's coming up as an emissions sensor. Not sure if it EGR valve or the sensor near the cat. But I thought the car would have diagnosed a fault code on its own that way I would know which sensor it was.

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I have and it's coming up as an emissions sensor. Not sure if it EGR valve or the sensor near the cat. But I thought the car would have diagnosed a fault code on its own that way I would know which sensor it was.

Isnt the emissions sensor the lambda sensor?

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I think so but apparently there's 2 sensors

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It is the lambada sensor. How easy is it to sort and what do they cost??

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I believe it's just a spanner and a connector.part isn't dear either.

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Ok thanks

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