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94-5 EF Falcon, Over Revs on gear changes (manual) 

 

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 Post subject: 94-5 EF Falcon, Over Revs on gear changes (manual)
Posted: Mon Oct 03, 2005 10:49 pm 
Oompa Loompa
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Age: 39

Posts: 20

Joined: 10th Feb 2005

Ride: Fairmont

Location: Canberra
ACT, Australia

So who has had this issue?

When the Falc is at standard running temp, the car over revs when you put the clutch in for gear changes! Like massive rev increase. It behaves like a stuck cable, or an odd fast idle issue but it's not.

The standard idle at the lights can vary from 1,500 to 2,300 (at which point you pull the clutch a bit to make it back off)

it's the standard EF engine with no dizzy...

so any ideas?
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Posted: Mon Oct 03, 2005 10:54 pm 
Getting Side Ways
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Age: 33

Posts: 927

Joined: 6th Nov 2004

Ride: BA Falcon EGas

Location: Perth
WA, Australia

Its you idle control valve, I had the same problem with mine after my cam change.


The way I fixed it is to pull the valve off and clean it.
then use the gasket to stecil out its shape onto a bundy can. then cut it out and when it comes to making the holes, make them about 1/4 of the size.

This reduces the amount of control the computer has over your idle and the amound of air that bypasses the throttle body.

then put it back on and voila!!

I hope that makes sense, I've done it and I've also told a few ppl here to do it and we all swear by it.

 

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BA Falcon Futura on EGas. Stock as...

EF 5 speed manual; PH 4480 Pacemaker Headers; 2 1/2" Lukey Mandrel Bent System; Hi Flow Walker Cat; Stage 3 Crow Cam; ChipTorque Chip; 3" Mandrel Bent Intake; K&N Pod Filter; Low Pedders Suspension; 17" EL GT Champagne Rims; RPM Series Clutch

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Posted: Mon Oct 03, 2005 11:14 pm 
Oompa Loompa
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Age: 39

Posts: 20

Joined: 10th Feb 2005

Ride: Fairmont

Location: Canberra
ACT, Australia

Cheers!
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Posted: Mon Oct 03, 2005 11:42 pm 
Getting Side Ways
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Age: 33

Posts: 927

Joined: 6th Nov 2004

Ride: BA Falcon EGas

Location: Perth
WA, Australia

no worries. I recommend a can of bundy and coke!!!
nothing works better.
in fact, it has to be bundy and coke.

 

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BA Falcon Futura on EGas. Stock as...

EF 5 speed manual; PH 4480 Pacemaker Headers; 2 1/2" Lukey Mandrel Bent System; Hi Flow Walker Cat; Stage 3 Crow Cam; ChipTorque Chip; 3" Mandrel Bent Intake; K&N Pod Filter; Low Pedders Suspension; 17" EL GT Champagne Rims; RPM Series Clutch

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Posted: Tue Oct 04, 2005 10:42 am 
Getting Side Ways
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Age: 35

Posts: 533

Joined: 12th Jan 2005

Location: Melbourne
VIC, Australia

Hmmm. Mine does the same thing on Petrol, not on gas.

I would have assumed that the ECU was still controlling the ISC while running on gas. Is this not the case? Mine feels more like there's not enough decel enrichment from the ECU.
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Posted: Tue Oct 04, 2005 3:01 pm 
Getting Side Ways
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Age: 33

Posts: 927

Joined: 6th Nov 2004

Ride: BA Falcon EGas

Location: Perth
WA, Australia

I run only petrol and thats the problem I had. thats the way to fix it.

 

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BA Falcon Futura on EGas. Stock as...

EF 5 speed manual; PH 4480 Pacemaker Headers; 2 1/2" Lukey Mandrel Bent System; Hi Flow Walker Cat; Stage 3 Crow Cam; ChipTorque Chip; 3" Mandrel Bent Intake; K&N Pod Filter; Low Pedders Suspension; 17" EL GT Champagne Rims; RPM Series Clutch

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Posted: Wed Oct 05, 2005 8:49 am 
Oompa Loompa
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Age: 39

Posts: 20

Joined: 10th Feb 2005

Ride: Fairmont

Location: Canberra
ACT, Australia

The same issue with Gas is a little more complex, as the gas gear controls a lot of that...
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Posted: Wed Oct 05, 2005 6:20 pm 
Getting Side Ways
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Ride: BF XR6, BF XT Wagon

Power: 197 rwkw

Location: Perth
WA, Australia

Its not normal for the cars to do this and I am stuck as to why it is doing it.

About a month or two ago it was fine and doing what you would expect. But now the revs hold on gear changes.

Hmmmm.

 

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EL XR8
Timmeh banned himself from being a moderator.

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Posted: Wed Oct 05, 2005 6:32 pm 
Getting Side Ways
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Age: 33

Posts: 927

Joined: 6th Nov 2004

Ride: BA Falcon EGas

Location: Perth
WA, Australia

All I know is that this is a common thing to happen when you have cammed your car as the ecu freaks out because there isn't enough vacuum.

For me, this method fixed it because it was cause by my cam which is quite lumpy. However, you are right...If the car is stock and is doing this, it indicates that there could be another problem.

 

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BA Falcon Futura on EGas. Stock as...

EF 5 speed manual; PH 4480 Pacemaker Headers; 2 1/2" Lukey Mandrel Bent System; Hi Flow Walker Cat; Stage 3 Crow Cam; ChipTorque Chip; 3" Mandrel Bent Intake; K&N Pod Filter; Low Pedders Suspension; 17" EL GT Champagne Rims; RPM Series Clutch

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Posted: Wed Oct 05, 2005 6:32 pm 
Getting Side Ways
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Joined: 9th Mar 2005

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Ride: Territory TX AWD & AUII XLS EGAS

Location: East Kurrajong
NSW, Australia

I was going to say take your foot off the accelerator when pushing the clutch in ... just to pull your chain ... hee hee

 

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04 Territory TX AWD - Winter White - optioned up
06 Falcon BFII XLS ute EGAS - Winter White - EGA-54D Version 2

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Posted: Thu Oct 06, 2005 8:56 pm 
Oompa Loompa
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Age: 39

Posts: 20

Joined: 10th Feb 2005

Ride: Fairmont

Location: Canberra
ACT, Australia

Yeah it's a stock engine
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