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O2 in the primary or collector - what say you?

3.7K views 15 replies 10 participants last post by  rtj  
I'm thinking that by having the sensor in the collector the ECU will see an 'average' of all cylinders on the bank and adjust fuel to an average and safe mixture. If you measure only 1 cylinder and that cylinder happens to be running rich the ECU would lean out the mixture for all cylinders. If another cylinder was running lean for some reason at the same time there could be damage from runnng overly lean.

:cheers:

Rick B.
:agree: