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June 29th, 2013 06:33 PM #1
We've been using Petron xtra unleaded Ron 93 on our city 2009 AT since 2009. Just this April xtra changed from 93 to 91. Then just this June I've tried it at skyway, hirap umakyat sa 5th gear. I tried sports mode sa sctex and it stayed at 110kph at 5th gear. Sinagad ko apak sa gas and it still 110kph. Then sa mga maliliit na uphill sa subic nahihirapan and acceleration, I'm expecting Pag nasa D eh automatic down gear, hindi sya nagdodown gear, ako pa nagshift sa S mode so I can down gear.
May sumubok gumamit into at sabi mali daw timing.
Ano ba gagawin ng Honda to fix the timing? Bala pedeng ako na lang gumawa?Last edited by BratPAQ; June 29th, 2013 at 06:36 PM.
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June 29th, 2013 11:39 PM #2
A 2009 City doesn't have an adjustable distributor cap.
To have the timing corrected, try disconnecting the battery to reset the ECU. If that doesn't work, drain tank, refill with 95. Let the ECU re-learn the timing.
The ECU will adjust the timing if the fuel load changes. If the City is not rated for 91 RON, then it won't adjust properly, or pull the timing back (pull - retard... timing advance is lessened... car becomes less sensitive to low octane but loses power) so badly that the car feels weak.
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July 1st, 2013 06:20 PM #3I really dont know what is the reason behind reducing you RON from 93 to 91 but I suspect that you want to economize a bit due to rising fuel cost. Same what I'm doing but instead of reducing RON I have increased it from 95 to 97 at two pesos less than the big three's prices. Yes, I'm using Seaoils extreme which is a lot less but the pulling power is enormous. Try it.
But in case you don't want to change brands then baguhin mo na Lang timing me. Normally advance timing yan from 5 to 10 degrees advance for higher RON of 93 to 95. Try reducing it to 0 to 3 degrees advance at pakiramdaman mo performance. Kung may timing light ka you can do it yourself for old school cars that you can simply adjust the distributor. For ECU cars, you will need an advance equipment and the knowledge to operate it.
Cheers,
Bob
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July 1st, 2013 08:11 PM #4
^ Sir, Petron's Xtra Unleaded was downgraded to 91 RON, kaya no choice si TS kundi gamitin yung 91 as the lowest octane at the same price.
I tried using Xtreme too, almost same power with Nitro+ Racing and Blaze at 2-3php less. My only gripe with it is the efficiency and engine noise. With racing and blaze I can get 7.5Km/L. With xtreme I only registered 6.8Km/L. But I guess it was all compensated by the price.
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July 1st, 2013 09:31 PM #5
As I said... the 2009 City has no distributor cap. You either need factory reflash equipment (costly) or a piggyback controller like the Unichip.
But to buy a 30k Unichip just to adjust to poor gasoline is a waste. Much better to simply switch brands and find a fuel that makes your car happy.
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July 2nd, 2013 10:37 AM #7fuel kaya talaga problema or maybe throttle body and maf sensor needs cleaning?
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July 2nd, 2013 04:16 PM #8
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alas, a nose is easily fatigued. hence its unreliability.
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