Bouncy Idle Only on Cold Start - Team Integra Forums - Team Integra
 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 02-20-2019, 11:36 AM Thread Starter
Junior Member
 
that_white_gsr's Avatar
 
Join Date: Sep 2018
Posts: 7
Feedback Score: 0 reviews
Bouncy Idle Only on Cold Start

Hello all,

I’m currently having the dreaded cold start idle issue on my 2001 Integra GSR. What happens is it will start, and then bounce between 1k to about 1.8k RPMs before it eventually smooths out after the car is warm. This is the only time it does this, so I’m wondering what can cause it.

The engine doesn’t have a FITV, the throttle body has been cleaned, and IACV(bought at oreillys) has been replaced. I am also running a P28 hondata chipped ecu that I recently replaced my P72 with, but the issue still remains during cold start. I’m thinking of replacing the hoses to the IACV, and if not that the map sensor, then TPS, and if nothing else the throttle body and it’s gaskets.

Is there anything else I’m missing to replace? Would I not get a CEL for the map sensor or TPS if those were the issue? A smoke test has been conducted but no leaks were found, and I am stomped on what it could be. Is there anything I’m missing to test? Also if I get a stock map sensor, will it have to be calibrated? The engine was recently rebuilt with forged pistons and heads so that’s the reason for switching to P28, but thanks in advance for your help.
that_white_gsr is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 02-20-2019, 04:00 PM
Senior Member
 
Absolute_Yeti's Avatar
 
Join Date: Feb 2019
Location: Minnesota
Posts: 144
Garage
Feedback Score: 0 reviews
I'll listen in on this as well. my 95 LS does this but I figured it was the 10 year old air filter and oil/antifreeze sludge everywhere in my bay.

95 Integra LS - Touge/Time Attack
B18b1
Absolute_Yeti is offline  
post #3 of 8 (permalink) Old 02-20-2019, 05:10 PM
Senior Member
 
Absolute_Yeti's Avatar
 
Join Date: Feb 2019
Location: Minnesota
Posts: 144
Garage
Feedback Score: 0 reviews
Question for you, what happens if you cold start it with the electrical connector to the IACV disconnected? I was digging through an old build thread of mine for my old Spectra5 (Kia, engine was a honda clone) where I was having similar issues and mine cleared up after flat out deleting the IACV (which could be simulated by just unplugging it to test)
Absolute_Yeti is offline  
Sponsored Links
Advertisement
 
post #4 of 8 (permalink) Old 02-20-2019, 08:30 PM Thread Starter
Junior Member
 
that_white_gsr's Avatar
 
Join Date: Sep 2018
Posts: 7
Feedback Score: 0 reviews
Quote:
Originally Posted by Absolute_Yeti View Post
Question for you, what happens if you cold start it with the electrical connector to the IACV disconnected? I was digging through an old build thread of mine for my old Spectra5 (Kia, engine was a honda clone) where I was having similar issues and mine cleared up after flat out deleting the IACV (which could be simulated by just unplugging it to test)
I haven’t tried unplugging the IACv yet, but I can try it out. I know there’s the option to delete but apparently there’s some draw backs when doing that. It’s weird because before the rebuild never had the issue, and since then I do have it. Does the IACv have connector spot like a sensor to unplug?
that_white_gsr is offline  
post #5 of 8 (permalink) Old 02-20-2019, 08:44 PM
Senior Member
 
Absolute_Yeti's Avatar
 
Join Date: Feb 2019
Location: Minnesota
Posts: 144
Garage
Feedback Score: 0 reviews
yeah, it's a 2 or 3 wire plug on the bottom of the sensor.
Absolute_Yeti is offline  
post #6 of 8 (permalink) Old 02-20-2019, 10:00 PM Thread Starter
Junior Member
 
that_white_gsr's Avatar
 
Join Date: Sep 2018
Posts: 7
Feedback Score: 0 reviews
Quote:
Originally Posted by Absolute_Yeti View Post
yeah, it's a 2 or 3 wire plug on the bottom of the sensor.
I’ll check it out tomorrow. But unplug it while car is running?
that_white_gsr is offline  
post #7 of 8 (permalink) Old 02-20-2019, 10:01 PM Thread Starter
Junior Member
 
that_white_gsr's Avatar
 
Join Date: Sep 2018
Posts: 7
Feedback Score: 0 reviews
Quote:
Originally Posted by Absolute_Yeti View Post
yeah, it's a 2 or 3 wire plug on the bottom of the sensor.
I’ll check it out tomorrow. But unplug it while car is running?
that_white_gsr is offline  
post #8 of 8 (permalink) Old 02-21-2019, 09:58 AM
Senior Member
 
Absolute_Yeti's Avatar
 
Join Date: Feb 2019
Location: Minnesota
Posts: 144
Garage
Feedback Score: 0 reviews
I would unplug it before startup so it's completely out of the loop. It may throw a code i'm not sure on honda/acuras, but it should clear when you plug it back in if it does. idealy you just want to rule out issues with that system.
Absolute_Yeti is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Integra Forums - Team Integra forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
2000 GSR Takes a Long time to Start Green2000GSR Generation Three 1 06-19-2018 05:00 PM
Car won't start (yes, another one of these) skoebl Generation Three 3 06-02-2018 04:32 PM
1995 Acura Integra GS-R Idle Issue JeremyIntegra Generation Three 2 05-26-2018 06:17 AM
Series of events : started popping out of first now car wont start McRussell Generation Three 0 04-22-2018 04:32 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome