hello all,
i was wondering what idle speed is the norm for an 02 Protege LX? mine is
about 400 rpms and it seems low, although i thought my 99 Outback had a
low idle speed as well so it may just be my thing. i just read 7-800 rpms
according to one post. would it hurt to increase it a bit with idle control screw?
i may try that tomorrow...
thanks, jim

 

well, today it when to zero at a red light and i had to shift to neutral and rev the engine!
i dumped some chemtool injector cleaner in the gas tank and it didn't go down that low
again. other than cleaning the throttle body and MAF sensor, any other suggestions? i
p/u some carb cleaner and will do the throttle body this weekend...

 

Check for a split intake pipe & vacuum leaks.

 

thanks GR! i will do that a little more closely this weekend. it hasnt done in a few days
and i'm thinking it "could" be this "relearning the idle" thing i saw a youtube video about
as i had disco'd the battery and re-charged it a couple days prior? i don't understand it
but i will go over it thoroughly saturday (before the NFL playoff games, of course).
jim

 

Overtime, engine conditions change, and slowly wear out, gum up etc. The ECU/PCM notices these minute changes and continuously adapts to these changes to provide optimal operation. When the battery is disconnected, the ECU/PCM loses these learnt changes and reverts back to the factory settings. When the battery is reconnected it has all these new conditions to deal with and can struggle to compensate.

 

thanks for the education GR! that makes a lot of sense. i sure hope you are
not near any of those fires..
jim

 

Thankfully I am well north. There has been some fires up north around me before christmas but not serious. It's scary what mother nature can do when pissed off.

 

glad to hear you are safe!