tuner-automotive Posted December 20, 2006 Share Posted December 20, 2006 On my 92 Leg 2.2L EJ22 motor. Does it have a idle switch? Or is the idle switch the Idle Air Control Valve (IAC)? Quote Link to comment Share on other sites More sharing options...
Manarius Posted December 20, 2006 Share Posted December 20, 2006 The computer controls the idle. However, if the car is cold, I've found that you can tap the gas and the car will go back down to 1k idle instead of the 2k you get when it starts. Quote Link to comment Share on other sites More sharing options...
tuner-automotive Posted December 20, 2006 Author Share Posted December 20, 2006 Not having a problem like that. I have a CEL that calls for the idle control being wrong. I wasnt sure if there was a idle switch or if was solely controled by the IAC? Quote Link to comment Share on other sites More sharing options...
Manarius Posted December 20, 2006 Share Posted December 20, 2006 Not having a problem like that.I have a CEL that calls for the idle control being wrong. I wasnt sure if there was a idle switch or if was solely controled by the IAC? As far as I know, it's all controlled by the IAC Valve. Quote Link to comment Share on other sites More sharing options...
nipper Posted December 20, 2006 Share Posted December 20, 2006 Not having a problem like that.I have a CEL that calls for the idle control being wrong. I wasnt sure if there was a idle switch or if was solely controled by the IAC? Thats the IAC being "wrong". What exactly is the code? nipper Quote Link to comment Share on other sites More sharing options...
Legacy777 Posted December 20, 2006 Share Posted December 20, 2006 The idle switch is incorporated into the TPS. Readjust the idle switch/TPS using these instructions. If you still have the code/issue, check the wiring and/or replace the TPS. If you replace the TPS, you need to adjust/calibrate the new one using these same instructions. http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/TPS_testing3.jpg Quote Link to comment Share on other sites More sharing options...
WAWalker Posted December 20, 2006 Share Posted December 20, 2006 Clean the IAC. Most likely it is full of carbon and hanging up. Quote Link to comment Share on other sites More sharing options...
tuner-automotive Posted December 20, 2006 Author Share Posted December 20, 2006 I have cleaned a few iac BEFORE . about 2 out of 5 that I have cleaned get screwed up after cleaning. Quote Link to comment Share on other sites More sharing options...
WAWalker Posted December 20, 2006 Share Posted December 20, 2006 I have lost count of the ones that I have cleaned. I have NEVER had to replace one. How are you cleaning them and what are you cleaning them with? Quote Link to comment Share on other sites More sharing options...
tuner-automotive Posted December 20, 2006 Author Share Posted December 20, 2006 Carb cleaner , down the throat . Shake or NO shake ? Quote Link to comment Share on other sites More sharing options...
nipper Posted December 20, 2006 Share Posted December 20, 2006 Carb cleaner , down the throat .Shake or NO shake ? carb cleaner BAD! Get the proper cleaner for it. Carb cleaner is way too harsh. nipper Quote Link to comment Share on other sites More sharing options...
WAWalker Posted December 20, 2006 Share Posted December 20, 2006 Carb cleaner , down the throat .Shake or NO shake ? Carb cleaner is probably not the best choice. I personally use SeaFoam Deep Creep that comes in an aerosol can. Down the throat of what? The IAC or the throttle body. If you are cleaning the throttle body then I can understand why you have had little luck. I have heard of others cleaning the throttle body and it being messed up after that. But since the throttle body isn't the problem when it comes to Idle Control Malfunctions, there is NOT any reason to try and clean it. I know that the general consensus on this board is to NEVER clean the IAC. But since the proceedure to do it is right there in the Factory Service Manual, and it in fact works (100% of the time for me) I see no reason not to. Quote Link to comment Share on other sites More sharing options...
tuner-automotive Posted December 20, 2006 Author Share Posted December 20, 2006 What is the procedure then? What should I clean it with? Throat = the big port on the IAC. Quote Link to comment Share on other sites More sharing options...
WAWalker Posted December 20, 2006 Share Posted December 20, 2006 Well the FSM does over complicate it. Basicly you: Then start the engine, spray in the cleaner of your choice, and opperate the throttle buy hand to keep the engine from dieing. Simple. That is a can of WD40, which would probably work. But like I said, I use Sea Foam Deep Creep. Carb and brake cleaner have a tendency to melt plastic so I don't recommend, as the air doors inside the IAC are plastic. Quote Link to comment Share on other sites More sharing options...
tuner-automotive Posted December 21, 2006 Author Share Posted December 21, 2006 tHATS A MUCH BETTER WAY TO DO IT. Quote Link to comment Share on other sites More sharing options...
jjou812 Posted December 21, 2006 Share Posted December 21, 2006 i think it's valvoline that makes a synthetic throttle body cleaner. it worked wonders on a 91 camry. Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted December 21, 2006 Share Posted December 21, 2006 Wish I could find some good TB cleaner...all I coud find locally is some STP TB cleaner. Richard Quote Link to comment Share on other sites More sharing options...
tuner-automotive Posted December 21, 2006 Author Share Posted December 21, 2006 Did the trick with the Deep Creep. Much better idle when warm , but still a really bad cold start. I have to try and start it like 2-3 times before itll finally hold a idle and then it usually sits at like 200rpm and slowly climbs to 800rpm before finally holding a consistant idle. Starts and idles just fine when its at operating temp. I reset the ECU so well see if we get any CEL's. Quote Link to comment Share on other sites More sharing options...
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