Fordmods Logo

eb idling high then droping to normal idle? 

 

Page 1 of 1 [ 12 posts ] 

 
 Post subject: eb idling high then droping to normal idle?
Posted: Thu Dec 03, 2009 5:32 pm 
Parts Gopher
Offline

Age: 26

Posts: 67

Joined: 29th Jun 2008

Ride: EB Fairmont

Location: Wollongong
NSW, Australia

i need some help, when im driving and changing back through the gears or sitting at the lights, i rev the engine and when i drop my foot off the pedal, it takes awhile for it to drop back to normal idle speed, it holds the revs at 900 rpm for about a second or two then it drops down to normal idle, ive changed the isc, does it need the throttle body cleaned aswell or is there more to it.
car is a 6 cyl with a manual. cheers any help would be appreciated.

 

_________________

Silver EB Fairmont- AU S3 engine, Tickford Head, EF handbrake, T5 manual, EF XR6 3.45 LSD, 2.5" Catback by Rapid Exhaust, EL BBM, EL XR6 ECU, EL Thermos, EB Ghia interior, Kingy Superlows, Monroe struts
Now with a Walbro 255lph fuel pump :grin:

soon to come a crankin sound system boo yeh!!!!

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Thu Dec 03, 2009 9:11 pm 
Getting Side Ways
Offline

Age: 26

Posts: 1109

Joined: 4th Sep 2009

Ride: 92 EB s

Location: DORRIGO
NSW, Australia

Mine does the same. And is the same model. I dunno what it is.
Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Thu Dec 03, 2009 9:18 pm 
Getting Side Ways
Offline
User avatar

Posts: 1543

Joined: 7th Mar 2007

Ride: ED Pwnage Pwr!!

Location: onawhoopwhoop
SA, Australia

Its that poofter bastard Idle control solenoid, just disconect it and touch up the base idle.

Mine dose it too :mrgreen:

 

_________________

Adelaide Motorplex < Click on it! You know you want too!
ED HP AU XR6, Wade, T5, and all the usual stuff!

Quote:
Thats not the point *a**hole

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Thu Dec 03, 2009 11:48 pm 
Parts Gopher
Offline

Age: 26

Posts: 67

Joined: 29th Jun 2008

Ride: EB Fairmont

Location: Wollongong
NSW, Australia

yea its been doing it for a while so i put a new idle speed controller, so ill set the base idle and give the throttle body a clean tomorrow. cheers for the help

 

_________________

Silver EB Fairmont- AU S3 engine, Tickford Head, EF handbrake, T5 manual, EF XR6 3.45 LSD, 2.5" Catback by Rapid Exhaust, EL BBM, EL XR6 ECU, EL Thermos, EB Ghia interior, Kingy Superlows, Monroe struts
Now with a Walbro 255lph fuel pump :grin:

soon to come a crankin sound system boo yeh!!!!

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 12:07 am 
Fordmods Junkie
Offline
User avatar

Age: 35

Posts: 3045

Joined: 26th Nov 2008

Ride: 1975 XB Falcon 500

Location: In the drivers seat
SA, Australia

I bet you changed the isc with one from the wreckers?

I had this issue in my NF fairlane, and I can tell you I swapped the isc 2 times before I found a suitable replacement from a wreckers. They are hard to find in working order from a wreckers. Ask to see all the isc's they have on the shelf and check them out, make sure the spring inside actually works and it clean. Needle in the hey stack but its worth going through the pain looking for a good one, rather than disconnecting it altogether.

 

_________________

Image
http://www.facebook.com/Ford1975

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 12:23 am 
Parts Gopher
Offline

Age: 26

Posts: 67

Joined: 29th Jun 2008

Ride: EB Fairmont

Location: Wollongong
NSW, Australia

nah i bought one brand new a genuine ford one, pretty expensive to from ford.

 

_________________

Silver EB Fairmont- AU S3 engine, Tickford Head, EF handbrake, T5 manual, EF XR6 3.45 LSD, 2.5" Catback by Rapid Exhaust, EL BBM, EL XR6 ECU, EL Thermos, EB Ghia interior, Kingy Superlows, Monroe struts
Now with a Walbro 255lph fuel pump :grin:

soon to come a crankin sound system boo yeh!!!!

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 12:51 am 
Fordmods Junkie
Offline
User avatar

Age: 35

Posts: 3045

Joined: 26th Nov 2008

Ride: 1975 XB Falcon 500

Location: In the drivers seat
SA, Australia

Hang on mate.

I just read your first post again, and you said your revs are holding at 900 rpm then dropping after a second or 2 it drops down to normal idle. Thats actually how it works mate. What is it dropping down to after it sits on 900?

I might try and reset your base idle and see how that goes, but by the sound of it you dont have any rev hang what so ever. I had rev hang, and it would sit on 1200 rpm and just stay there. Revs would not drop between gear changes in the manual what so ever.

Since I got a hold of a good ISC, it does as you describe.

 

_________________

Image
http://www.facebook.com/Ford1975

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 1:07 am 
Parts Gopher
Offline

Age: 26

Posts: 67

Joined: 29th Jun 2008

Ride: EB Fairmont

Location: Wollongong
NSW, Australia

it drops down to about 650-700 rpm,which is normal idle, i will try and reset the base idle and see if it does anything.

 

_________________

Silver EB Fairmont- AU S3 engine, Tickford Head, EF handbrake, T5 manual, EF XR6 3.45 LSD, 2.5" Catback by Rapid Exhaust, EL BBM, EL XR6 ECU, EL Thermos, EB Ghia interior, Kingy Superlows, Monroe struts
Now with a Walbro 255lph fuel pump :grin:

soon to come a crankin sound system boo yeh!!!!

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 1:51 pm 
Oompa Loompa
Offline

Posts: 44

Joined: 25th Nov 2009

Ride: Ford Falcon GLi sedan

Location: sydney
NSW, Australia

Hi, my manual says base idle is 650-700rpm +- 100rpm so 800rpm is ok. Is another 100rpm all that much of a problem? Start playing around with the engine management may lead to more problems than it is worth? I can't pick 100rpm difference all that well anyway.
Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 2:11 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

if it holds 900 rpm for a honest 1 or 2 seconds? thats not a big problem..

if its not a factory manual??? does it have a manual ecu or a manual j3 chip??
also was the neutral switch connected when the 5 speed was put in??

all of these can have an effect on how well it will idle...
Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 3:36 pm 
Parts Gopher
Offline

Age: 26

Posts: 67

Joined: 29th Jun 2008

Ride: EB Fairmont

Location: Wollongong
NSW, Australia

nah its not a factory manual i put the box, its running a EL XR6 man ecu and everything was connected up when put in but ill check anyway.

 

_________________

Silver EB Fairmont- AU S3 engine, Tickford Head, EF handbrake, T5 manual, EF XR6 3.45 LSD, 2.5" Catback by Rapid Exhaust, EL BBM, EL XR6 ECU, EL Thermos, EB Ghia interior, Kingy Superlows, Monroe struts
Now with a Walbro 255lph fuel pump :grin:

soon to come a crankin sound system boo yeh!!!!

Top
 Profile  
 
 
 Post subject: Re: eb idling high then droping to normal idle?
Posted: Fri Dec 04, 2009 7:43 pm 
Getting Side Ways
Offline

Age: 26

Posts: 1109

Joined: 4th Sep 2009

Ride: 92 EB s

Location: DORRIGO
NSW, Australia

i replaced my ics with a wreckers one too, helped for a bit, but now its doing it again, hangs at 1100 then drops to 850, when its hot she hunts a little, but its no big deal i dont think.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 12 posts ] 

Who is online

Users browsing this forum: No registered users and 31 guests


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 post attachments in this forum

 

 

It is currently Wed Dec 13, 2017 1:01 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names