Fordmods Logo

ISC, ECU and idling problem- hope you like reading 

 

Page 1 of 1 [ 12 posts ] 

 
 Post subject: ISC, ECU and idling problem- hope you like reading
Posted: Fri Apr 20, 2007 10:03 pm 
Stock as a Rock
Offline
User avatar

Age: 42

Posts: 155

Joined: 12th Jun 2006

Gallery: 5 images

Ride: Falcon

Location: LA LA LAND
VIC, Australia

Here we go again. Have read lots of posts. Can be a very tricky thing to pin point, anyone with an idea or had a similiar problem please advise?
I have an EF I6 Auto, dual fuel.

Two mechanics had a look and can't fix it.
Its not the Map sensor, the ISC seems to be working but unsure how well.
Injectors are a1.
What it did first was just idle a bit off, hunting while on petrol but fine on gas.
After the last mechanic had a look it all changed?? All I saw him do was advance the timing so now it idles better at the lights and driving. What new though is when starting on petrol rpm is all over the place and then it usually stalls. The battery was disconnected so I guess the ECU did the relearning or whatever. Its always run rich.
I bought an ECU for $30, about to put it in, the C2 and C7 capacitors look ok.
I don't really trust ebay, prefer Bursons
a new ISC is $154
Oxy sensor is $82.50
Crank sensor $76
Coolant sensor $32.50
To have an ECU professionally tested takes 4hrs and is $85 and it has to be out the car before you get there.

HELP!!!!

 

_________________

Don't bug me unless you have chocolate or a cure for PMT

Top
 Profile  
 
 
Posted: Fri Apr 20, 2007 10:11 pm 
Getting Side Ways
Offline
User avatar

Age: 46

Posts: 8590

Joined: 5th Nov 2004

Gallery: 5 images

Ride: AU Fairlane 5.0, KE Laser, 01 Kw

Location: Melbourne
VIC, Australia

Well the EF has coil packs so the timing is not adjustable for starters.

I'll move this to the 6 cyl forum, you'll get more of a response there.
Top
 Profile  
 
 
Posted: Fri Apr 20, 2007 11:40 pm 
Stock as a Rock
Offline
User avatar

Age: 42

Posts: 155

Joined: 12th Jun 2006

Gallery: 5 images

Ride: Falcon

Location: LA LA LAND
VIC, Australia

Thanks,
I was told that the timing was out??

 

_________________

Don't bug me unless you have chocolate or a cure for PMT

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 12:17 am 
Getting Side Ways
Offline
User avatar

Posts: 3115

Joined: 20th Dec 2004

Ride: Falcon

Location: Adelaide
SA, Australia

Yeah, cant change the timing on an EF. I am guessing he bumped up the idle speed a little.

I would try 5 things
1. Remove ISC, clean out with carby cleaner and replace.
2. Replace leads and spark plugs
3. Run a self test on the ECU
4. Reset idle speed
5. Check for vacuum leaks around the intake manifold gasket by spraying it with carby cleaner.

Might also like to replace the fuel filter

 

_________________

Stoke me a clipper, I'll be back for Christmas

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 1:14 am 
Technical Contributor
Offline
User avatar

Age: 53

Posts: 5587

Joined: 14th Jan 2005

Gallery: 10 images

Ride: 96 XH/97 EL

Location: South Coast
NSW, Australia

Check your injector electrical plugs are secure and clipped properly. Check all vaccy hoses as well (especially MAP sensor).

Don't rely solely on what the mechanics have said either.

If the car runs and idles without a problem on LPG, but ordinary on petrol, I'd be suspecting a petrol delivery problem - replacing the fuel filter first is a good idea, particularly if you don't know when it was changed last.

All that stuff you bought, you'll probably find you won't need - what you should do is post on here for help first.

 

_________________

96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl
97 EL Futura S/W: LPG, Alarm, LED int Lts, Trip Comp, F/Lane Dome Lt, Climate Ctrl, T5 Conversion

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 1:37 am 
Oompa Loompa
Offline

Posts: 29

Joined: 16th Jan 2007

Location: Kalgoorlie
WA, Australia

had a drama with young blokes nl fairlane, running rough, idling high, rough gear changes (auto). Injector o-rings were squarish looking,changed them and now it purrs.
Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 7:36 am 
Stock as a Rock
Offline
User avatar

Age: 42

Posts: 155

Joined: 12th Jun 2006

Gallery: 5 images

Ride: Falcon

Location: LA LA LAND
VIC, Australia

Thank you all,
so far I have only bought the ECU.
Thought posting here might save me $$
if anyone recognised the problem.

xler8, The injector rings are not square at all, are intact and c clean.

So form what everyone says its not going to be an issue with the ECU?

while running the manifold gasket was sprayed with something while it was running it seemed ok.

when I said timing I was told cam timing, the chain keeps slipping?
All I can say is thank god for LPG.

 

_________________

Don't bug me unless you have chocolate or a cure for PMT

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 10:52 am 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 4146

Joined: 7th Dec 2004

Gallery: 6 images

Ride: E39 523i / EF Fairmont

Location: Brisbane
QLD, Australia

I'm bidding on a new oxy sensor, so I'll let you know if that makes a difference on mine.

stockstandard wrote:
Yeah, cant change the timing on an EF. I am guessing he bumped up the idle speed a little.

I would try 5 things
1. Remove ISC, clean out with carby cleaner and replace.
2. Replace leads and spark plugs
3. Run a self test on the ECU
4. Reset idle speed
5. Check for vacuum leaks around the intake manifold gasket by spraying it with carby cleaner.

Might also like to replace the fuel filter


How do you run a self test on the ECU?
How do you reset idle speed?

 

_________________

E39 523i
EF Fairmont

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 6:42 pm 
Stock as a Rock
Offline
User avatar

Age: 42

Posts: 155

Joined: 12th Jun 2006

Gallery: 5 images

Ride: Falcon

Location: LA LA LAND
VIC, Australia

Have a look at page 97-98 of your Gregory's

 

_________________

Don't bug me unless you have chocolate or a cure for PMT

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 6:56 pm 
Stock as a Rock
Offline

Age: 31

Posts: 181

Joined: 7th Sep 2006

Ride: EF Mont

Location: Hobart
TAS, Australia

If you've got a gregories. How much are they usually and where's a good place ya can usually get em from? I've been meaning to find one for ages.

 

_________________

Sanity is for the Weak!!

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 7:43 pm 
Stock as a Rock
Offline
User avatar

Age: 42

Posts: 155

Joined: 12th Jun 2006

Gallery: 5 images

Ride: Falcon

Location: LA LA LAND
VIC, Australia

http://www.marque.com.au/scripts/BooksB ... ord&Type=C

Factory workshop manual $249
Gregorys $57.95

 

_________________

Don't bug me unless you have chocolate or a cure for PMT

Top
 Profile  
 
 
Posted: Sat Apr 21, 2007 8:07 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 4146

Joined: 7th Dec 2004

Gallery: 6 images

Ride: E39 523i / EF Fairmont

Location: Brisbane
QLD, Australia

Ah k, I'll have a look in my gregorys.

 

_________________

E39 523i
EF Fairmont

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 23 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 Tue Dec 12, 2017 11:26 pm All times are UTC + 11 hours

 

 

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