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Old 04-05-2014, 11:20 PM   #1
dwnsnow
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Default Help!!!!!

gday guys my series III xr8 au is playing up. the problem happens when a whine come from the motor alot like a supercharger, the car then looses alot of of power and dropping cylinders misses and carrys on. this happens very randomly sometimes high rpm mid rpm and low rpm with and without load

cheers guys.

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Old 05-05-2014, 08:25 AM   #2
Uncle_Ken
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Default Re: Help!!!!!

Have you done the usual ie checked/changed spark plugs, checked/changed fuel filter, checked/changed leads?

Uk
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Old 05-05-2014, 08:55 AM   #3
mytgxl
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Default Re: Help!!!!!

Need to do a fault code diagnostics check & see what comes up!
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Old 05-05-2014, 09:38 AM   #4
mif73
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Default Re: Help!!!!!

Quote:
Originally Posted by dwnsnow View Post
gday guys my series III xr8 au is playing up. the problem happens when a whine come from the motor alot like a supercharger, the car then looses alot of of power and dropping cylinders misses and carrys on. this happens very randomly sometimes high rpm mid rpm and low rpm with and without load

cheers guys.
Cam synchroniser?
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Old 05-05-2014, 10:10 AM   #5
Muzza661
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Default Re: Help!!!!!

Leads and plugs have been changed. About 5 codes come up relating to do with everything coil packs but like I said only happens when supercharger sounding noise comes from the motor
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Old 05-05-2014, 11:58 AM   #6
auIILTD
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Default Re: Help!!!!!

I am with Mif. Sounds like a cam sync, with the exact same behavior I experience when I stipped a cam gear (that drives the cam sync).

Stu
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Old 05-05-2014, 12:51 PM   #7
Muzza661
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Default Re: Help!!!!!

Quote:
Originally Posted by auIILTD View Post
I am with Mif. Sounds like a cam sync, with the exact same behavior I experience when I stipped a cam gear (that drives the cam sync).

Stu
Ok so where is the cam sync and is their a way to tell if it has had it
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Old 05-05-2014, 03:51 PM   #8
auIILTD
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Default Re: Help!!!!!

Muzza, cam sync is the under your coil pacs on a AU V8. It is where your distributor would be if it where in an older car.

This is him:


Your best option would probablly to import one from the US and have a mechanic fit it up for you (half hour job).

This one is known worker on our engines.

http://www.rockauto.com/catalog/more...641&cc=1304435

Cheers
Stu
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2002 AU II LTD

5.6L 342ci T3 Short, AFR165 heads, Comp XE270HR-12 Cam, Brembo 4/4s(355/330), T3 5 spokes, LC-1 wideband, Whiteline HD swaybars, TCE 3K Hi Stall, PWR Auto Trans Cooler, Koni shocks, King Low Springs, Hurricane headers, 100 cpsi cats, Twin 2.5" exhaust.

Quarter Mile: 13.73 @ 105.86mph


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2002 XR8 pursuit 250

Custom twin 2.5" exhaust w Herrod modifed extractors, Tuned with Moates QH
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Old 13-05-2014, 12:52 AM   #9
Muzza661
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Thumbs up Re: Help!!!!!

Thankyou to everyone who helped ended up replacing cam sync and harmonic as that was on its way out too. The car is like brand new smooth as a new car and power has increased significantly so cheers guys much appreciated
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