hi, iv put a decat pipe on my 93 wrx import. all went well until i went to put the lambda sensor back in..its a differnt size to the threaded hole..

is it a lamba sensor iv taken out? its 2 wires, red and black.was in the standard down pipe, just after the cat

is there one from a different model i can use that will fit the hole?

thanks,matt

 

Early classics had the lambda sensor in the manifold, only the post 97 classics have the lambda sensor in the downpipe.

Banny

 

what you have taken out is the cat temp sensor, which isnt needed on the decat just unplug and way you go

 

thats great ta..just gotta find something to bung it up with now.
ta,matt

 

spot on,i went to fit my decat today & had the same issue..

was just about to put a help post on here,no need nowthumb:

any no what size bolt is needed to plug hole in decat pipe

 

m18 1.5 get yourself to halfords and get a sump plug..not sure what model it was for but it was the biggest they had and its got a square alan key head on top of it.

 

or here if your not in a hurry
Lambda Sensor Boss & Bung :: Service Items :: Nitro Performance Limited

 

thanks mate

 

no probs, glad to be of assistance

 

the plug i used from halfords is part number hsp 609