yesterday it barely failed HC in drive test (.07 over .5).
went to velocity auto works in burnaby today (100% pass record, 79/79 repairs in last yr, also recommended by 2 coworkers) and was told cat was about 50% efficient (should be 80% or so) and front o2 sensor was slow/lazy.
total cost "happened" to be the max repair limit: 600 for 92-98 cars:
300 cat (cheaper than lordco, and installed!)
154 o2 (installed, cheaper than retail part!)
72 diag
74 tax
they aircared it for me and all 3 results improved, as expected. most importantly HC passed. hopefully 2 yrs from now it'll pass again.
anyway this shop seems honest/competent, worthy of repeat biz, unlike both burnaby dodge/chry dlrs