1991 Acura Integra - idle problem??

hey guys. I just got this integra. I think it has an idleing problem? the previous owner said the following.... " it has 153,000 miles. I think it has a problem with the TPS (throttle positioning sensor) and also has an oil leak. The car runs great other than it idles to high at about 2000 rpms. As well as got the IACV replaced. The TPS I swapped out of an old head laying around. The idle air control valve is what was replaced and still didn't adjust the idle..." The distruibutor cap looks normal, no cracks or serious wear. I recorded a video and put it on youtube for a better diagnosis from anyone that would like to contribute and help me out. Take a look. Any ideas? Thanks!!!

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integra idle problem solved





How To Solve Honda Idle Problems - EricTheCarGuy
Visit me at: http://www.ericthecarguy.com/ Before posting questions about Honda idle problems please read this: http://www.ericthecarguy.com/forum/8-Service-and-Repair-Questions-Answered- Here/41476-solving-honda-idle-issues-hunting-idle The viewers have chosen and this weeks video will be about solving Honda idle problems. I'm really not surprised as I get a lot of questions and requests about this very subject. Here are the links I promised in the video that will help you address specific issues mentioned in the video. How To Bleed a Cooling System http://www.youtube.com/watch?v=zUpXgAJ1gjU How to Check for Vacuum Leaks http://www.youtube.com/watch?v=9CPqbaSgcok Reading Check Engine Light Codes http://www.youtube.com/watch?v=BD05sPclLyE Diagnosing an Overheat http://www.youtube.com/watch?v=hUzOTnsWImI Hopefully when your done checking all that stuff out you will have solved your Honda's idle problem, if not leave a comment or send me a message and I'll see what I can do just make sure you have tried all the stuff in the videos first as that saves me from typing so much. I also want to add my "Idle Speech" into the mix here: http://www.ericthecarguy.com/forum/8-Service-and-Repair-Questions-Answered- Here/41475-solving-honda-idle-issues-rough-idle   There are a lot of things that can contribute to an idle issue, in fact in the end it may still be there to some degree because of the nature of that engine however here are some things to start with. First start with a good tune up, use NGK or Nippon Denso plugs, don't change the wires if they are OE, if they aren't OE you might consider NGK wires as they are very good and less expensive then OE.  A quality cap and rotor should be good.  A new air filter also helps. Don't change the PCV valve, if you see an aftermarket PCV valve in there put a Honda in, believe it or not I've seen idle issues caused by aftermarket PCV valves, the OE's last just about forever so you can easily justify the expense. Next a good valve adjustment, this goes a long way to smooth out the idle if done correctly, mess it up and things can get a lot worse though. While you have the valve cover off check the timing belt tension, if you feel a lot of slack this can cause the cam to 'chunk' as it spins causing a rough idle.  If you think the belt has been on there for some time then you might consider changing it and resetting the tension properly, if it's not ready for replacement you can reset the tension to take up the slack. DO NOT adjust the idle screw under any circumstances, it is set at the factory and that is the reason it was sealed in the first place. If you find that the seal has been broken and you have a low idle and you have done all of the above then you might turn the screw out a little to see if that helps the idle but only enough to try and bring it back to where it was before it was adjusted in the first place. Last clean the screen in the Idle Air Control valve, this can get clogged up with carbon over time and cause the flow through it to be restricted which can cause idle issues. If you still have a 'rough' idle after all of this THEN look to the engine mounts as you want to be sure the engine is running correctly before you go for those as the one in the back is a real pain to replace. --- Click below and Stay Dirty Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://www.ericthecarguy.com/forum/default.aspx Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy --- ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.





Honda-Acura Surging Idle Speed (case study)
What causes a surging idle speed on a Honda or Acura? Here, we’re addressing that complaint and what to look for when you run into this symptom. Honda has a unique programmed response to excessive idle speed, resulting in the distinctive Honda idle ‘surge’. Don’t be a parts changer and replace the IAC motor! Engine Performance Diagnostics chapter 20 Symptoms - surging idle when warm Fix - adjusting the cold fast idle valve Tests shown - how to scope test a fuel injector - understanding how Honda/Acura controls excessive idle speed - how to measure duty cycle on a computer controlled solenoid - how to test the electrical IAC solenoid - understanding common causes of high idle speed conditions - understanding the operation of a Honda cold fast idle valve - how to determine if the cold fast idle valve is operating properly - how to test for a malfunctioning cold fast idle valve at the throttle body - how to inspect and adjust a Honda cold fast idle valve Tools used - lab scope Playlist - (Chapter 20) Idle Speed Problems and Testing https://www.youtube.com/playlist?list=PLAFYVCyenqcrqC1WhVE1LTzQSn4mbMjdu Related videos - P0507 Idle Control System (RPM Too High) - vacuum leak - GM https://youtu.be/PKJnW08-Z8c - Ford Idle Air Control (IAC) valve test (how to adjust minimum idle speed) https://youtu.be/ayjhL9jpFH8 - P0506 IAC System RPM below expected (vacuum leak) - Ford https://youtu.be/Sqpelz3aTNQ - Ford idle air control valve (IAC) test - stalling problems https://youtu.be/0r3nCwZsS3M For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!





How to fix your stumbling idle issues
This is how to fix your 1.8 BP stumbling idle where the car down revs and wants to die then will go back to normal idle, well there's a throttle body air bypass screw for that that allows you to give it some bypass air at the throttle body.




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