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 ►+♠+-LYN Proton Persona Owners Club V.XXX9-+♠+◄, Persona: The Definition of Handling

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ZenGTMM
post May 21 2012, 11:09 AM

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QUOTE(K.Lee @ May 21 2012, 10:58 AM)
Me GUSTA le rim

http://paultan.org/2012/05/21/fiat-695-aba...s/500-maser-03/
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4 Hole but PCD looks like 100 only..
abong8
post May 21 2012, 11:13 AM

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QUOTE(ZenGTMM @ May 21 2012, 11:09 AM)
4 Hole but PCD looks like 100 only..
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usually fiat pcd is 98..
TSxandras
post May 21 2012, 11:15 AM

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QUOTE(mengsuan @ May 21 2012, 10:14 AM)
I have unusual fuel trims as reported by ECU, it's giving me headache.

Petrol operation:
STFT Bank 1: -50%
LTFT Bank 1: 0%
Observation: STFT will return to 0% when throttle is lifted. STFT returns to normal values of 0% to 2% at specific RPM ~1.5k. STFT is -50% at 99% of the time. Injector/vacuum leak?

Gas operation:
STFT Bank 1: 7% to 30%
LTFT Bank 1: 0.8%
Observation: Maybe caused by improper tuning (?)

Am I having a vacuum or injector leak? My concern is the petrol mode STFT.
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Might be a vacuum leak or improper o2sensor plugging. Did the NGV dudes mess with your AFR? -50% is very very high.
mengsuan
post May 21 2012, 11:23 AM

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QUOTE(xandras @ May 21 2012, 11:15 AM)
Might be a vacuum leak or improper o2sensor plugging. Did the NGV dudes mess with your AFR? -50% is very very high.
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They didn't mess with any sensor or original ECU. AFR is still unaffected at 14.71:1. But fuel trim is gone.

I don't remember well whether was it like this already before the NGV conversion, I have a feeling the STFT is behaving like that all the while. Do you know what's the correct procedure to troubleshoot? I heard some said smoke test for vacuum leak.
V12Kompressor
post May 21 2012, 11:26 AM

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QUOTE(The_FQ400 @ May 20 2012, 09:56 PM)
mana mana o.O
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Ipoh... lol
jhbey
post May 21 2012, 11:43 AM

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Morning peeps. Check in from Puchong SC. smile.gif
TSxandras
post May 21 2012, 11:48 AM

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QUOTE(mengsuan @ May 21 2012, 11:23 AM)
They didn't mess with any sensor or original ECU. AFR is still unaffected at 14.71:1. But fuel trim is gone.

I don't remember well whether was it like this already before the NGV conversion, I have a feeling the STFT is behaving like that all the while. Do you know what's the correct procedure to troubleshoot? I heard some said smoke test for vacuum leak.
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If you said that the STFT behaves like that all the time even before conversion, have you then felt any irregularities in the power delivery all this while? Like sudden power loss, reduced throttle response, no power at all at certain rpms?
mengsuan
post May 21 2012, 11:52 AM

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QUOTE(xandras @ May 21 2012, 11:48 AM)
If you said that the STFT behaves like that all the time even before conversion, have you then felt any irregularities in the power delivery all this while? Like sudden power loss, reduced throttle response, no power at all at certain rpms?
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Actually no. Even now with -50% STFT, the throttle response is fine.
TSxandras
post May 21 2012, 11:56 AM

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QUOTE(mengsuan @ May 21 2012, 11:52 AM)
Actually no. Even now with -50% STFT, the throttle response is fine.
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Does Ur device shows STFT2 & LTFT2 readings as well? It is very hard to explain then why is it at -50%.. -50% would give you almost no power at all.
WanTheBear
post May 21 2012, 01:13 PM

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and the bear has returned!
SUSVincentChen
post May 21 2012, 01:16 PM

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QUOTE(WanTheBear @ May 21 2012, 01:13 PM)
and the bear has returned!
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rclxs0.gif rclxs0.gif rclxs0.gif wave.gif wave.gif wave.gif
mengsuan
post May 21 2012, 01:50 PM

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QUOTE(xandras @ May 21 2012, 11:56 AM)
Does Ur device shows STFT2 & LTFT2 readings as well? It is very hard to explain then why is it at -50%.. -50% would give you almost no power at all.
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4 cylinder engine has STFT2?
K.Lee
post May 21 2012, 04:36 PM

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https://www.facebook.com/photo.php?fbid=303...&type=1&theater

whistling.gif
KKW
post May 21 2012, 04:43 PM

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QUOTE(K.Lee @ May 18 2012, 01:35 PM)
any good computer monitor to recommend for screen extension?

What is the best size nowadays? saw acer 20"led just now, damn small.
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Berapa budget? What is your current size?

This post has been edited by KKW: May 21 2012, 04:44 PM
K.Lee
post May 21 2012, 05:26 PM

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QUOTE(KKW @ May 21 2012, 04:43 PM)
Berapa budget? What is your current size?
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currently using 13" MBP. the screen too tiny, need an extension screen. Best out of budget lo... all below 1k, cheaper the better nia... sweat.gif

if can i want quality as good as MBP's screen sweat.gif
V12Kompressor
post May 21 2012, 05:44 PM

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WUX xxx

anda telah dispot. XD
jackyap84
post May 21 2012, 05:49 PM

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QUOTE(abong8 @ May 21 2012, 09:40 AM)
This 4-2-1 extractor I'm using currently performs very well in urban driving, lower FC compared with OEM, but when it comes to high revving on highway, damn fuel guzzler..
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torque improve obviously?
V12Kompressor
post May 21 2012, 05:51 PM

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QUOTE(abong8 @ May 21 2012, 09:40 AM)
This 4-2-1 extractor I'm using currently performs very well in urban driving, lower FC compared with OEM, but when it comes to high revving on highway, damn fuel guzzler..
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how many center bullet you pasang currently? hmm.gif
zapdos9
post May 21 2012, 05:54 PM

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QUOTE(V12Kompressor @ May 21 2012, 05:44 PM)
WUX xxx

anda telah dispot. XD
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sweat.gif Spot kat mane
U stalk me? laugh.gif

This post has been edited by zapdos9: May 21 2012, 05:55 PM
abong8
post May 21 2012, 05:56 PM

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QUOTE(jackyap84 @ May 21 2012, 05:49 PM)
torque improve obviously?
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belo 3k rpm, yes.. dramatically..

QUOTE(V12Kompressor @ May 21 2012, 05:51 PM)
how many center bullet you pasang currently? hmm.gif
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just change extractor, lain semua ori lagi..
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