Date: Sun, 11 Mar 2007 22:48:05 -0000 From: "kingdoodlesquat" <neggerscheggersnospamtseacatspam.com> Subject: Re: Oxygen sensor
"Fred W" <malt_houndnospamo.com> wrote in message news:rcudnVa4druwGWnYnZ2dnUVZ_s2vnZ2dnospamast.com... > kingdoodlesquat wrote: > > Hello all, > > > > I've recently bought a '98 900S turbo & was having a look at the fuses by > > the passenger door (like you do) & have discovered that fuse 38 for the > > oxygen sensor has blown it fuse. First off, what does the sensor do & is it > > the same thing as the lambda sensor? Second thing, is this likely to cause > > any damage if it's not working? > > > > It runs really wells at the moment & I've not noticed any drop in > > performance, so I'm at a loss at what the problem really is. > > > > tia > > > > kds > > > > > > First off, yes the O2 senosr is the same as a "lambda" sensor. > The only part of the sensor that gets power is the heater. The purpose > of the heater is to get the sensor up at operating temperature faster so > that the ECU can go into closed loop mode faster. This design minimizes > the higher emmissions period of "open-loop" warm-up mode. If there is a > problem with it you would notice it about 3-5 minutes after a cold start > when the ECU tries to switch over to closed loop. > > Normally, you would then get a check engine fault of some sort. You may > want to verify that you Check Engine lamp is OK, and has not been > defeated by the prior owner or unscrupulous salesman. > > -- > -Fred W Cheers Fred. Looks like I'll be forking out for a new sensor then - unless I can blame it on the crap fuel at Tesco's.
