Re: Help! Idle problems - Microswitch - Loose wires!

[dherv10@xxxx]

Stian, When the engine is cold, the Lambda system for gas mixture is 
on manual and sending 80/20 signal to the FV to run a certain 
mixture. When things start to heat up, the the sensors start to back 
off, then the 02 sensor takes over and sends the voltage to the 
Lambda to adjust the air/gas mixture. If the air flow is not adjusted 
correctly for the age of the 02 sensor or new 02, then the car is 
( Seeking ). Meaning the 02/lambda is looking for the right mixture. 
Thus your idle goes up and down. Adjust the air flow meter with a 3mm 
long handle allen wrench. Just do a 1/4 turn either direction when 
the engine is hot and see what happens. This should be done with a 
exhaust analyzer for the correct setting, but the manual may get you 
by. 
As far as the two wires loose on top of the engine, more than likley 
they are the wires fron the micro switch which turns the idle spped 
motor on. Black is common normally goes to the center terminal and 
black/green to the upper terminal. 
With out more specific information, there are two many wires in the 
relay compartment to speculiate on where it goes.
What Mike said about the coil is true. Coils do get weak and create 
over time a higher resistance and should be replaced ever so often.As 
I say on my web site: If you want a little pick me up, the coil can 
do it.
John Hervey
www.specialTauto.com
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