starider Posted September 26 Share Posted September 26 Please save hours looking for the !6pin DLC on my 2007 Alphard. Many thanks. Quote Link to comment Share on other sites More sharing options...
Rojie Posted September 26 Share Posted September 26 OBD2 Connector ? Picasso or Chris.ac will know; along with many others. Quote Link to comment Share on other sites More sharing options...
Geralt Posted September 26 Share Posted September 26 Usually by the brake pedal. Quote Link to comment Share on other sites More sharing options...
Picasso Posted September 26 Share Posted September 26 Just below the steering wheel Quote Link to comment Share on other sites More sharing options...
starider Posted September 26 Author Share Posted September 26 Thanks to both of you for your help.I hope to find out why the engine light comes on after driving for a bit, after switching of and re-starting the light goes off again.I suspect the front Lampda sensor needs replacing. Will post the results of my diagnosis. Quote Link to comment Share on other sites More sharing options...
Picasso Posted September 27 Share Posted September 27 2.4 have have 2 sensors one at the top is the fuel ratio sensor most call it a lambda sensor it's not common mistake alleyways replace with correct sensor rear one is a lambda sensor if you need the part no. Pm your reg no. Quote Link to comment Share on other sites More sharing options...
Geralt Posted September 27 Share Posted September 27 My understanding is that air-fuel ratio and lambda are the same thing expressed differently. AFR of 14.7:1 is the same as saying Lambda = 1. The sensor upstream of the cat allows the engine ECU to adjust the fuel mass to the current incoming air mass. The downstream sensor is there to measure the performance of the cat. Both sensors measure oxygen. The engine will run happily without the downstream sensor (in principle) because it is not used to adjust fuel mass, only for diagnosis purposes. Quote Link to comment Share on other sites More sharing options...
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