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ba dedicated gas running problems HELP!! 

 

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 Post subject: ba dedicated gas running problems HELP!!
Posted: Sun Oct 30, 2011 10:41 pm 
Oompa Loompa
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Age: 28

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Joined: 15th Aug 2006

Location: Wallan
VIC, Australia

hi all i need help from all the gas gurus out there.
i've got a 05 ba dedicated gas ute that has a flat spot mid range and is generally gutless, even more than usual.
it was running ok and then i put a new stainless extractors, cat and 2.5in exhaust and a cai off a typhoon, then the flat spot and gutlessness got even worse WTF??
things done about 10k ago:
new converter and stepper motor
new NGK plugs and genuine coils
new air filter
thought might be O2 sensor so i just changed that
what i want to know is would the heat from the extractors be cooking the convertor even through the heat sheld? is the exhaust flow too good? would it be getting to much air with the cai? would the cat be already stuffed?
anyone one with any idea's would greatly help, i wanted to make it go better not worse
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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Sun Oct 30, 2011 10:47 pm 
Smokin em up
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Ride: XF 5 LIT P/ VAN EF 5 LIT FUTURA

Location: melbourne
VIC, Australia

What Converter did you fit. [Genuine] T.P.V.M.

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Sun Oct 30, 2011 10:49 pm 
Oompa Loompa
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Location: Wallan
VIC, Australia

yes mate it was a new not reco vialle converter from orbital gas
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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Sun Oct 30, 2011 11:23 pm 
Smokin em up
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Ride: XF 5 LIT P/ VAN EF 5 LIT FUTURA

Location: melbourne
VIC, Australia

What type of plugs, standard or Iridium. TPVM.

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Mon Oct 31, 2011 9:38 am 
Oompa Loompa
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Age: 28

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Location: Wallan
VIC, Australia

the plugs are iridium ones
thanks, andrew.
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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Mon Oct 31, 2011 9:48 am 
Getting Side Ways
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Age: 49

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Joined: 6th Jul 2006

Gallery: 13 images

Ride: BA Falcon

Power: 106 rwkw

Location: Craigmore
SA, Australia

After the mods did you do an ECU reset?

Do that and see if it helps...

Disconnect battery..
Flash High beams (yes with battery disconnected)
wait 10-20 mins.
Hook battery back up.
Turn on Ignition (ICC will Have code on it)
Turn off then on and start car.

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Mon Oct 31, 2011 11:08 am 
Oompa Loompa
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Age: 28

Posts: 23

Joined: 15th Aug 2006

Location: Wallan
VIC, Australia

yes i did the reset after putting the new o2 sensor in seemed to make idle worse thats about it. I didn't flash the headlights but i left it off for about an hour.
Does anyone think it could be getting too much air from the cai?
I read on here bosch double platiums are the best gas plugs, but when i put them when the ba was running well they gave it a rotten idle and made it back fire!!
I'm just about ready to sell it and buy something else so keep shooting ideas there has to be something i've missed. Thanks, andrew.
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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Mon Oct 31, 2011 12:53 pm 
Getting Side Ways
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Age: 49

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Gallery: 13 images

Ride: BA Falcon

Power: 106 rwkw

Location: Craigmore
SA, Australia

It is possible the lower intake is causing it to lean out.

Try blocking it off somehow and take it fot a drive and see if it improves...
Have heard of someone else doing this and having the same effect.

I just went with the XR6T snorkal on mine.

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Wed Nov 02, 2011 9:16 pm 
Oompa Loompa
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Age: 28

Posts: 23

Joined: 15th Aug 2006

Location: Wallan
VIC, Australia

hi all thanks for all the replys, just an update,
the rough idle's has been fixed with the O2 sensor, i found my balance line off so thats why the idle got worse with the new o2 sensor.
I blocked off the secondary cai and it seems it was getting too much air WTF!
With it blocked it has removed my flat spot and given me more power.
So for all those dedicated gas falcon owners out there, DO NOT repeat DO NOT put a secondary cai on your car, it will make it run like s#*t and have LESS POWER!! If thats possible.
Thanks andrew.
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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Wed Nov 02, 2011 9:39 pm 
Getting Side Ways
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Age: 49

Posts: 1062

Joined: 6th Jul 2006

Gallery: 13 images

Ride: BA Falcon

Power: 106 rwkw

Location: Craigmore
SA, Australia

Glad you got it sorted out.....

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Wed Nov 02, 2011 10:30 pm 
Getting Side Ways
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Hunty wrote:
hi all thanks for all the replys, just an update,
the rough idle's has been fixed with the O2 sensor, i found my balance line off so thats why the idle got worse with the new o2 sensor.
I blocked off the secondary cai and it seems it was getting too much air WTF!
With it blocked it has removed my flat spot and given me more power.
So for all those dedicated gas falcon owners out there, DO NOT repeat DO NOT put a secondary cai on your car, it will make it run like s#*t and have LESS POWER!! If thats possible.
Thanks andrew.


The intake you fitted would have caused a balance line issue. Believe it or not that line wasn't just an after thought and small changes in air pressures and movement of air past the line in the intake can cause problems.

This highlights why it's important to understand how something works before modifying it.

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Thu Nov 03, 2011 5:10 am 
Oompa Loompa
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Age: 28

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Joined: 15th Aug 2006

Location: Wallan
VIC, Australia

yes i understand what the balance line is for i just didn't think it would make that much of a difference.
Question is if i was to make a Y piece up for it so it takes air from both intakes does any think this could work or would it put too much air into the line?
I've heard the these convertors can't take boost, would the extra air going into the balance line make it not run?
Thanks, andrew
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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Thu Nov 03, 2011 11:31 am 
Getting Side Ways
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It would be some trial and error to find a setup tha worked,

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Thu Nov 17, 2011 12:54 pm 
Getting Side Ways
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Age: 49

Posts: 1062

Joined: 6th Jul 2006

Gallery: 13 images

Ride: BA Falcon

Power: 106 rwkw

Location: Craigmore
SA, Australia

I have heard of someone moving the balance line to top of the airbox (in the pipe) so it can account for both intakes.... But never seen pics or seen how it was done....

 

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 Post subject: Re: ba dedicated gas running problems HELP!!
Posted: Fri Nov 18, 2011 6:11 am 
Oompa Loompa
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Age: 28

Posts: 23

Joined: 15th Aug 2006

Location: Wallan
VIC, Australia

AU99 wrote:
I have heard of someone moving the balance line to top of the airbox (in the pipe) so it can account for both intakes.... But never seen pics or seen how it was done....

thanks mate i didn't even think of that duh, but its a great idea i might try it.
I think i've got other issues as well because every now and then it still misses and almost dies at idle, and its still gutless.
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