| Decoding the codes of 328IC
1. We got a check engine light on the Red 328IC with Auto tranny and had the code/reset tool in the toolbox. Code indicated "19" Pre-cat o2 sensor heater cylinders 1-3, not voltage or activity which are also given by other numbers. My question is does this particuler code indicate something other than replacement. I am aware that these codes are "leads" and I may find a broken wire or something simple(BCS best case scenario) or actual fouled out and in need of replacement(WCS). As my wife has indicated "running rough" I suspect its time for a tune-up(85K on Odo). Prices I have seen are around 150.00-200.00 for one or are they usually sold in pairs? Best price was Bavarian but for our year they don't show a pre-cat(Hmm?) Any help appreciated.
2. Also got the airbag light on . Turned it off with the reset tool but it came back indicating a seat belt latch(female) drivers side. Does this require replacement of entire unit? | 
