hi james,lee,mark
thanks for the response and ideas.
Have checked on connectors and on this one, plug connectors are interchangeable,but different shape throttle has right angle but well worth a look thank you. James your comment re air restriction reminded me that to enable lambda to switch when vehicle was running i disconnected the crankcase breather pipe from cam cover this started lambda switching and performing as normal.
Will hopefully get some time today and connect scope as you suggest.

thanks once again for help and input.
peter