wondering has anyone got any ideas on how to help me with getting it through an nct.failing on emmisions and the lambda reading.ive changed the catylst twice and used two working lambda sensors also.again today failed on both.im running a hks f con gold ecu piggybacked(fuel and ignition timing system) any ideas? car has been off the road for the last 5 months so mad to get it on the road for the summer:thumbs: