| || ||Thread Tools||Search this Thread|
|24th November 2009, 21:12||#31|
Senior - BHPian
If you have your old O2 sensor, you can connect it and check the error code yourself. The guide I posted on the previous page is very very simple to follow and doesn't take more than 10 minutes. If it doesn't throw an O2 code, then your dealer might have cheated you altogether.
|24th November 2009, 23:30||#32|
Join Date: Mar 2006
Thanked: 118 Times
just went through the thread and I was having somewhat same issues after I changed my throttlebody from a imported(thai spec) one to the stock one, the reason being that this throttlebody did not have a place to connect the IACV and hence I had the CEL glowing permanently and whenever I would switch the a/c on, I would have to hold throttle to stop the engine from dying.
After successfully removing the imported TB and placing the stock TB, the woes started. Initially I had misjudged and put the MAP sensor wire onto the TPS and the TPS wire to the MAP sensor hence the car would not respond to the change in the butterfly positon. After figuring this out and getting the TPS to function properly the problem of IDLING started. NO CEL but the car would simply not IDLE, in my case it was fluctuating between 1000-2000rpm.
Please do the following steps to isolate the problem, I have a very strong feeling that the Honda engineers have not cleaned ur IACV properly.
1. Take out your filter, thereby exposing your throttlebody.
2. On the left side of your throttlebody(with you facing the engine bay from the driver side) you will see a small hole, which is the IAC valve, take your finger and block it by say 25%
3. Notice how your car behaves, technically the rpm should immediately drop.
4. If it does, on the top left outside the throttlebody you will notice the IAControl screw, turn that and while turning it see if you can see some plate kind of thing closing the small hole(IACV). If it is moving, try to adjust the idling. I guess in your case its not cuz, I am sure the Honda guys would have tried doing this!
5. If NOT, take the throttle body out from the intake manifold and open it.
6. Notice that there is a small chamber kind of thing which sits right next to that hole outside the plenum and is closed with the help of 2 nuts.
7. Open these nuts and you will see a rubber gasket, remove the gasket and then you will see a long cylindrical kind of a thing which has 2 open paths cut on it, this is the plate which rotates behind the IACV thereby controlling the Idle.
8. Make sure that this thing is rotating freely and effortlessly, wash it with diesel if needed, use a brush if you want too!
9. Dry the TB and place the rubber gasket and assemble the TB properly.
10. Take a screw driver and see if the plate is rotating when you move the IAC Screw.
11. If yes, then plonk the tb back onto the manifold, connect the sensor wires and crank the car.( LEAVE THE IACV sensor, do not connect that at this point in time)
12. Let the car warm up with the fans spinning up atleast once
13. Adjust the idle, and then switch off the engine
14. Connect the IACV Sensor and place the filter
15. Crank your car, there should be no CEL and you should be all set.
If the above steps do not solve your problem, replace the TB with another TB and check. This cannot be a ECU issue.
Hope this helps!
Last edited by ssjr0498 : 24th November 2009 at 23:33.
|2nd December 2009, 19:02||#33|
Join Date: May 2006
Thanked: 69 Times
Hi Friends, Sorry for not posting back here for so long as I was a bit busy. After long discussions here at T-BHP, My Honda Dealer and many others, my problem is solved. How? I switched back to my stock muffler and headers!
A little back-story on why I got the Automech FFE for the OHC:
The OHC had done 50,000 kms and its stock muffler pipe had rusted away. This was pointed out by the service engineer at HASS and I asked for a quote on the muffler pipe. Rs.10,000 was the propmt reply for the muffler end section
After hearing this, I checked around for a second opinion and discovered that non-OEM muffler end pipes were available for as low as Rs.3.5k (!)
The next thing I did was contact automech and get a quote for their FFE System. I got a really good quote [13.xx k] (remember HASS quoted 10k for the end section alone ) and after reading all about the automech exhausts in T-BHP, I decided to go in for the FFE system rather than replacing the end section.
The order was placed at the automech dealer in my city and the shop owner gave an ETA of one week. In today's world of half-hearted promises, I was pleasantly surprised when the shop owner called me EXACTLY a week later and told me the FFE system had arrived Real professionalism there! Kudos to automech!
The FFE system itself was good. The build quality was better than I expected and it came with heat proof coating. I got it installed at my Honda Dealer. The system was a perfect bolt on as promised by automech and the install was really neat.
The rest of the story you know... [for those who don't, read the thread from the beginning....]
Now, since the car was primarily being used by my dad, he was really upset at the idling problem and drop in fuel economy [changed his driving style due to the FFE system! Now that is no surprise now, is it ]
We had stored the stock exhaust system away and my father got it repaired at a local workshop and he informed me that he was going to switch back to stock exhaust system. I was against this [losing that awesome soundtrack and performance???], but since that car was primarily used by him, he won the argument.
We visited HASS last sunday (29th nov) and got the stock system fitted back. And after starting up the car for the first time after the stock exhaust system was back in place, the car idled at 750 RPMs , much to the delight of my dad and the HASS personnel.
We discussed the issue with HASS engineer and he informed me that the problem was with the ECU [which was also pointed out my Automech in their e-mail] He told me that the ECU was configured for stock setup and if aftermarket FFE is installed, such problems might arise.
He further added that chipping/modding the ECU to accommodate the new FFE system will help. So can anyone throw some light on this point?? Also, could this problem be due to the fact that my OHC is an automatic? I haven't come across a BHPian who has installed an FFE on an OHC A/T.
The car is back to its old self now but I sorely miss the soundtrack and that sense of urgency when you push the throttle! And overtaking was so much more fun with the FFE! Dad is happy that the idling problem is solved and the fuel economy is back to normal again!
oh, and special thanks to ssjr0498 for that long and informative post! But I lack the expertise to perform such work!
So there you have it. Please post your opinion guys! Mods, can you please add prefix [Solved] to the thread topic?
|2nd December 2009, 22:05||#34|
Senior - BHPian
|2nd December 2009, 22:45||#35|
Join Date: May 2006
Thanked: 69 Times
I came across another member dhananjay who has installed Automech FFE on his City A/T. I have e-mailed him about his experience with the install, so i'll report back here.
Automech too told that it has nothing to do with the exhaust, but with the ECU. I am quoting their e-mail
Still I have nagging doubts if the problem is related to the fact that my car is an automatic
BTW the FFE is now on sale in the classifieds, as I am a bit short on cash and I cannot use it unless this problem is solved
Last edited by Games Goblin : 2nd December 2009 at 22:47.
|3rd December 2009, 00:37||#36|
Senior - BHPian
You do not need a remap in the first place. The higher idling was due to the ECU or the IACV, yes. But it should have nothing to do with your FFE directly. What you can do is find out about the error codes yourself from the link I posted. It's a 2 minute job and doesn't involve anything dangerous. Just jump the service connector, and turn the key till ignition. Don't start the car. Get the error codes, turn off ignition, remove key and disconnect the service connector jumper.
If you can, do it with the FFE installed and all sensors connected. That will pinpoint the errors that the ECU is finding, if any. Forget the fact that Honda people told you of XYZ problem and do it yourself. They will obviously try to sell you a new O2 sensor for 16k. The problem could be something else altogether.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Diesel Cars: Down, down, down! Market share = 34%||S2!!!||The Indian Car Scene||66||2nd June 2016 16:21|
|Went to a wedding, car burned down!||harsh.m06||Street Experiences||8||25th April 2016 18:35|
|Installed K&N Filter... What Next?||dsinz||Modifications & Accessories||24||12th June 2011 00:37|
|High Idling RPM. What went wrong?||saurabhkum||Technical Stuff||8||25th October 2007 20:00|
|rpm below idle rpm||tortoise||Technical Stuff||12||2nd April 2007 00:51|