Does this switch have a function? PIC
 

just got the bentley manual and discovered this switch.
my question....does it have a function if the o2 sensor is disconnected?http://forums.pelicanparts.com/uploa...1083364011.jpg http://forums.pelicanparts.com/uploa...1083364036.jpg

maybe someone?

Jason,
I think that the switch is useless w/ o2 sensor disconnected.

As an aside, when I was runnning the o2 sensor I had some problems w/ stalling when the revs dropped- it turned out that switch wasn't being tripped. Adjusting it fixed the problem.

Re: Does this switch have a function? PIC
 

Yes.

"When the engine is cold" implies open loop operation, before the O2 sensor is up to operating temp. The Open loop duty cycle is fixed at 65% (for 81-83), so momentarily bumping it up to 75% will make it a little richer off idle.

Tom