A really old fart returns (and smells like it)

[Bruce_Hearn@cd-tech.com]

Rick Warkentien wrote:
>From my personal experience (list based and personal experience)
 >the O2 sensor on our cars can deteriorate over time causing a rich condition
> which will lead to unburned hydrocarbons in the exhaust.

Give the man a cigar!

and then:
>Sometimes it helps to back the timing off a little bit if you are in a pinch to
 pass emissions.

Take that cigar back!

Excess HC wants more timing, not less.  NOx wants less timing.

Bruce in Houston, lister since '98
'94 Nissan Sentra SE-R w/ $tuff, converting to ITS
'98 Suzuki Bandit 1200S w/ $tuff
'02 Dodge Dakota SLT 4-door tow vehicle, stock!