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Volvo: Lambda light on, air hoses, emission system


Question
Hi Vedat
My Lambda light came on 2 days ago on my 1995 850 t5 estate the light stayed on for the duration of my journey then when I started the car later it had gone out, but today while driving slowly about town it came back on again
the car is driving perfectly and starts well etc
I look forward to hearing from you
Regards
Jonee

Answer
Hi,
Lambda light means your car emission system have problem. In detailed, there is problem at inlet side or exhaust side. There may be a defective sensor or part or blocked or broken hose at inlet side.
According to my experiences, I can say that the problem is at inlet side.
Firstly, the car should be checked in a dealer and Diagnostic Trouble Codes should be read via Volvo System Tester, after learning what the Diagnostic Trouble Code is, the corrective action will be taken. If you learn the Diagnostic Trouble Code from a dealer I can help you more.
But firstly you may check all the air hoses at inlet side, this can be very beneficial and helpful for you. As a clue for you, there is a short and small pipe under the inlet manifold comes from turbo charger, firstly check it, it may be defective. However, if you can not find any defective pipe, it means that there is a defective part or sensor.
If you need more info, I am ready to write you.

GoodLuck... Regards...