New Here?
Toggle Content
   

Toggle Content User Info
Welcome

Anonymous

Nickname
Password
Register

Membership:
Latest: Andyblue64
New Today: 0
New Yesterday: 0
Overall: 17123

Online Now [286]:
Visitors: 285
Bots: 1
Members: 0
Staff Online Now:

No staff members are online!
Page Views:
Today: 56331
Total: 98143535

Toggle Content Main Menu
 General Info Goodies Search Web Stats Members
 Donations

 

Forums › The Car › 206 Problems › 1.4 16v 2004 - idle bouncing when clutch disengaged


 
 

1.4 16v 2004 - idle bouncing when clutch disengaged
Forum Index206 Problems
Reply to topic Printer Friendly Page watchs.gif View Previous Topic View Next Topic
Author
Message
Veng92
PostPosted: Sat Nov 26, 2022 6:49 pm Up
New in Town


Offline

Joined: Aug 04, 2020
Posts: 5
Trade Rating: 0
Location: Dorset, UK


I've recently had the clutch changed (did the clutch cable myself which was a pita) and it drives fine, but when cold the car has a bit of a wobble when trying to pull away, revs dropping and need to manage it with the gas pedal.

I took the car for a drive today and noticed when I got back that the idle was bouncing in neutral with the clutch disengaged. It's fine when I press the clutch... any ideas what would cause this? I don't get any codes come up with a scanner...

Update... Problem seems intermittent, if I turn the engine off and on again it idles ok - I'm guessing it could just be the ECU re-learning idle after an extended period being disconnected?

View user's profile
Steve206
PostPosted: Mon Nov 28, 2022 6:21 pm Up
Paid up Member of the Info Exchange


Offline

Joined: Feb 07, 2010
Posts: 2718
Trade Rating: +6
Location: UK


Make sure youve not got any air leaks, that could cause a pulsing idle.

Whats the year and engine?

Work in Progress
View user's profile
mkgin
PostPosted: Fri May 26, 2023 1:58 pm Up
Getting to like it here


Offline

Joined: May 24, 2021
Posts: 10
Trade Rating: 0
Location: Finland


Veng92 wrote:
I've recently had the clutch changed (did the clutch cable myself which was a pita) and it drives fine, but when cold the car has a bit of a wobble when trying to pull away, revs dropping and need to manage it with the gas pedal.

I took the car for a drive today and noticed when I got back that the idle was bouncing in neutral with the clutch disengaged. It's fine when I press the clutch... any ideas what would cause this? I don't get any codes come up with a scanner...

Update... Problem seems intermittent, if I turn the engine off and on again it idles ok - I'm guessing it could just be the ECU re-learning idle after an extended period being disconnected?

I had a similar sounding problem with a 2.0L EW10J4. At low load (putting in clutch) the RPM sometimes dropped really low, and occasionally stall. Not really intermittent but cyclic. (Kind of like re-learning you mentioned.

I also use an ethanol conversion key and through this was able to determine that the injectors were off when the RPM would drop. This would be ok while in gear, but not ideal with the clutch in.

Your motor has a different ECU so but it could still be worth checking the speed sensor on the gearbox.

In my case the problem was a broken speed sensor. No errors visible with a normal OBD reader.. I found this using PP2000. Looking at OBD data... the speed was 0 always (before fixing) and now it is correct... You could try checking the speed according to OBD while driving.

I guess that the speed and mileage was calculated using the ABS wheel sensors... The ECU uses the speed sensor to adjust for low loads.

View user's profile
Reply to topic Printer Friendly Page watchs.gif View Previous Topic View Next Topic All times are GMT
Forum Index206 Problems

Page 1 of 1
  You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum

 
We are not responsible for comments posted by our users, as they are the property of the poster
Interactive software released under GNU GPL, Code Credits, Privacy Policy