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 Post subject: petrol guzzler
Posted: Sat Aug 06, 2011 8:33 pm 
Stock as a Rock
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Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

hey guys iv got a 220kw AU XR8, when i bought it, i could give it a bit of a boot every now and then and i would still get about 400km out of the tank, now im driving like a grandma and im getting 280 to a tank and i cant figure out why, the mechanic has told me all my sensors are fine, so the only thing i can think of is my intake, iv got a lukey panel filter and iv cut the front out of my air box, my mechanic put a belt dressing on the belt and its flicked it all through the engine bay and the filter looks like it might have some on it, if the air flow was blocked a bit would this cause more fuel consumtion, or the other theory was, that the increase of air volume from the hole in the air box is causeing the computer to pump more fuel to keep the mixture the same... any theories would be very helpful... cheers

 

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NOTHING BEATS THE SOUND OF A GRUNTY V8!!!

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 8:38 pm 
Getting Side Ways
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Age: 30

Posts: 1507

Joined: 14th Aug 2009

Gallery: 12 images

Ride: BA XT V8

Location: Gosnells, Perth
WA, Australia

oxy sensor is stuffed.

 

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BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%.
13.65@102mph. 2800 hi-Stall.
230RWKW@5250 rpm. 625NM.

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 8:43 pm 
Stock as a Rock
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Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

thats what i thort but my mech has told me all sensors are fine... reckon they might be full of it tho...

 

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 8:46 pm 
Getting Side Ways
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Age: 30

Posts: 1507

Joined: 14th Aug 2009

Gallery: 12 images

Ride: BA XT V8

Location: Gosnells, Perth
WA, Australia

does it smell like its runnin rich after its warmed up?

 

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BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%.
13.65@102mph. 2800 hi-Stall.
230RWKW@5250 rpm. 625NM.

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 8:52 pm 
Stock as a Rock
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Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

it smells a bit rich at norm opperating temp but when it first starts is smells like its just flowing petrol out the exhaust pipe... its got a rough idel to but i dont know if thats a another symtom or not... holy s**t i cant spell tonight....

 

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 8:58 pm 
Getting Side Ways
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Age: 30

Posts: 1507

Joined: 14th Aug 2009

Gallery: 12 images

Ride: BA XT V8

Location: Gosnells, Perth
WA, Australia

heavy fuel use and rough idle are classic symptoms of oxy sensor.
my cousins commydore was running rich and running rough to the point of going into limp home mode.
was oxy sensor.

 

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BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%.
13.65@102mph. 2800 hi-Stall.
230RWKW@5250 rpm. 625NM.

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 9:00 pm 
Stock as a Rock
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Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

well ill give em a go, working at repco they wont be too expensive... cheers, its helpful when someone has had the same experience and got a good result, cheers mate

 

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 9:05 pm 
Getting Side Ways
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Age: 30

Posts: 1507

Joined: 14th Aug 2009

Gallery: 12 images

Ride: BA XT V8

Location: Gosnells, Perth
WA, Australia

no probs mate. hope it is the only issue

 

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BA XT V8. Ice Mint. 18" Speedys. XR6T LSD. Full Pacemaker twin 2 1/2inch Stainless Steel system. Custom CAI. Black XR interior with white trimming. Powerbond underdrive kit 25%.
13.65@102mph. 2800 hi-Stall.
230RWKW@5250 rpm. 625NM.

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 9:10 pm 
Stock as a Rock
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Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

hahah its not the only issue with the car but its the main one pissing me off at the moment, i love it but its not worth the 7k on top of what i paid for it... but ya get that with 2nd hand cars...

 

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 10:26 pm 
Getting Side Ways
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Sounds like it's running rich. Check & clean the MAF if you have not already done so.

 

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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 10:48 pm 
Getting Side Ways
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Posts: 6166

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if your car is running super rich then that may have caused the cats to fail?
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 Post subject: Re: petrol guzzler
Posted: Sat Aug 06, 2011 11:01 pm 
Stock as a Rock
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Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

never thort of that... might check those out...

 

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 Post subject: Re: petrol guzzler
Posted: Thu Aug 11, 2011 1:52 pm 
Tyre Shredder
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Age: 29

Posts: 365

Joined: 22nd Nov 2007

Ride: FG MK2 XR6T

Location: Bexley, Sydney
NSW, Australia

Rough idle and spitting fuel out the exhaust was the same symptoms I had when my oxy sensors were gone.

Disconnect the oxygen sensors and give it a drive. This will force it into "safe mode". It will still run rich, but not as much so as it is at the moment and should also rectify your rough idle. If this all happens, it's definetely your oxy's.

 

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 Post subject: Re: petrol guzzler
Posted: Thu Aug 11, 2011 2:33 pm 
Stock as a Rock
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Age: 27

Posts: 139

Joined: 23rd Mar 2008

Ride: AU Falcon

Location: Melbourne
VIC, Australia

Dont use aftermarket oxy sensor. I bought a brand new one thinking it would be fine and about 6 months later it developed idle issues and lost heaps of power. Not thinking it would be the oxy i replaced heaps, t-map, TPS, ISC, Aftermarket cam with another smaller one, then stock one and it still had issues. I then used a second hand genuine one and bam back to perfect.
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 Post subject: Re: petrol guzzler
Posted: Thu Aug 11, 2011 2:36 pm 
Stock as a Rock
Offline

Age: 27

Posts: 165

Joined: 19th Apr 2010

Gallery: 9 images

Ride: 09 FG XR6

Location: Traralgon
VIC, Australia

might go to my ford dealer and see how much they are, they be expensive but i can get em trade so why not...

 

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NOTHING BEATS THE SOUND OF A GRUNTY V8!!!

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