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AU XR8 missing and sluggish 3000rpm 

 

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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Mon Mar 14, 2011 4:45 pm 
Stock as a Rock
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Age: 55

Posts: 150

Joined: 6th Nov 2009

Ride: AU2 XR8

Location: waroona
WA, Australia

Thanks XR9UTE,

The IAC valve? Is that the cylinderical looking thing on the side of the TB. I did disconnected the TPS when doing it.

I checked the spring and all OK.
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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Mon Mar 14, 2011 4:46 pm 
Stock as a Rock
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Age: 55

Posts: 150

Joined: 6th Nov 2009

Ride: AU2 XR8

Location: waroona
WA, Australia

TKFD wrote:
well I had a crack at setting TPS voltage and Idle.

I have set my idle to where I want (950rpm - got a cam) and then set the TPS to 0.98v. However, if I blip the throttle the idle runs on.

What would be the cause of this?

cheers


by run on I mean it settles down after about 2-3 seconds.
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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Mon Mar 14, 2011 5:41 pm 
Stock as a Rock
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Age: 55

Posts: 150

Joined: 6th Nov 2009

Ride: AU2 XR8

Location: waroona
WA, Australia

...also forgot to mention, did a T56 conversion from auto, and kept same ECU.
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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Mon Mar 14, 2011 6:18 pm 
EFI Guru
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Age: 58

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Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

TKFD wrote:
...also forgot to mention, did a T56 conversion from auto, and kept same ECU.


Aha!
Want me to flash it to a manual?
On the other hand 2-3 secs ain't much, could be something else.
You need to disconnect your IAC/ISC valve when setting your idle.

Last edited by XR9UTE on Mon Mar 14, 2011 6:45 pm, edited 1 time in total.

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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Mon Mar 14, 2011 6:26 pm 
Stock as a Rock
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Age: 55

Posts: 150

Joined: 6th Nov 2009

Ride: AU2 XR8

Location: waroona
WA, Australia

thanks mate, but BPT who did the conversion would have done it.

I think :roll: They stuffed up the whole job, so wouldn't surprise me.

do you work for a tuning shop?
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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Mon Mar 14, 2011 6:54 pm 
EFI Guru
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Age: 58

Posts: 4359

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Give Barry a call and get him to sort it.
I do some part time stuff mainly for my mates these days as I simply don't have the time.
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 Post subject: Re: AU XR8 missing and sluggish 3000rpm
Posted: Tue Mar 15, 2011 2:48 pm 
Stock as a Rock
Offline

Age: 55

Posts: 150

Joined: 6th Nov 2009

Ride: AU2 XR8

Location: waroona
WA, Australia

well I had a go at adjusting idle with ISC valve disconnected. Didn't do anything - still has that 2-3 secs idle run on. It runs on to about 1200rpm, from a set 950rpm.

I might try a clean of the ISC.

Also, when BPT did the conversion, they installed a seimans ratio box. My speedo failed on the weekend (I tell ya this car is jinxed) and i checked out this box, and the wiring job looks like it was done by a 10 year old :x I fixed it up best I could, but the speedo still doesn't work. Would this affect idling in anyway?

cheers
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