I have fitted a 4-1 manifold to my 1.1 and its now loud as fuck and was faster by a fair bit but now the engine management light is on, came on after about 30 mins so im thinking that this is the second lambda am I right. And also I was goin to buy a sleeve off of gmc motorsport but then thought would it work if I just disconnected it at the blue plug, would my engine management light go off and would it come out of limp mode.
any help would be appreciated
any help would be appreciated