[DML] Re: A small start up problem

["supermattthehero" <supermatty@xxxxxxx>]

3000 seems kind of high.  I think 2000-2500 is probably more in the 
normal range.  You will likely have to adjust your mixture setting 
now that you've replaced your oxygen sensor.  The reason that the 
RPMS jump up like that (or at least this is what I think) is because 
of the cold start valve injecting additional fuel into the engine 
when you start it.  When all of this additional fuel is burned up, 
the idle falls back down to normal and the idle speed motor takes 
control.  

Matt
#1604 - likely the only car ever to its engine pulled in the process 
of replacing the oxygen sensor



--- In dmcnews@xxxxxxxxxxxxxxx, "anbrahaesl1982" <anders@xxxx> wrote:
> Hi,
> I've just replaced my CO sensor due to total lack of idle. The 
idle is back but one part 
> of the original problem remains. When I start the engine the revs 
go upp to 3000 and 
> stays there for 30 sec and the it goed down to normal. Does anyone 
have an idea on 
> this, it's probably very simple.
> 
> Keep on driving D
> Anders




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