X90 friendly?

[High Arctic Si]

100% X90 Friendly.. its has KICK power.....
my first 97, the IAC was totally stuck open, a real screamer....
the thermal IAC might stick closed, with the TB removed, it will be wide open cold.

make sure the ISC is not sticking too. ISC cleaned and EGR clean, the ISC will help add air at all times and help control idle speeds at all times.
no scan tool? if you have an old lap top(USB), a scan too can be had for $9
see the red words IAC INPUT port here.
http://www.fixkick.com/IDLE-AIR/16v-idle.html

So i removed the air intake pipe and had a look into the throttle body, it is sooted up and grimy.
must the intake manifold be remove to get the throttle body off?
could i try and flush out the IAC with it in place?
ISC sucks air when i remove the pipe and will cause the engine to stall, i guess that means it is not affecting the cold idle rpms, in a bad way.
I guess i could test the iac by blowing through a hose going in the inlet, with engine cold, air should pass through freely. If clogged, it would not.
Or i could tape it and start engine cold and see if the RPMS are even lower at idle

I just ordered the autel you recommended, but have access to a decent obd2 scanner at a local shop. last time i hooked it up it had a hard time connecting and would not operate with engine running, could this be caused by the p0300, random multiple misfire. the other code indicated coolant temp sensor voltage too high. For the last couple of days i have been able to keep the flashing SEL lamp calm by warming up the car with foot on throttle till it reaches operating temps, takes about 10 or 15 minutes at -25c ambient temp. Now after inspecting the front fender fuse block, this little trick doesnt seem to work anymore. the SEL light flashes, iam wondering now if i have a bad wire somewhere causing poor running.

I will get the scan tool on the machine today and report back with the results.
thanks for the advice.