Accent Lc 1.6 Turbo Probleme On Boost - Hyundai Forums : Hyundai Forum

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Old 08-05-2008, 08:40 AM   #1 (permalink)
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Join Date: Aug 2008
Posts: 6
alexlab79
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hello, first my english is a litle bad, i am french canadien.
I turboed my accent 2006(lc2)
My stock list:

1.6L
turbo kkk03 set at 7psi
bov
intercooler
home made simple AFC(when boost occur computer see O2 sensor very lean an enrich mixture at aprox 12-13:1..it's work good)
home made return line
FMU 6:1 and FPR

i have probleme when boosting but not allways, the car hesitate or not give me the full power...is very strange...first, when a snap the trottle in the floor, i feel the power but after one or 2 second, the car buck 1 or 2 second and i don't feel the power after but boost is at 7psi, if i release the trottle for less boost 2-4 psi at max..i feel the power...

my problem occur whitout my home made cheap AFC(But the buckage is less strong with my cheap AFC) ... i think is probably my map read too much pressure and cut the fuel but i have read in this forum the stock ECU and Stock map do not cut fuel above 14.5psi of boost?!?!

Assumption :
1-Map cut fuel
2-I don'T have tried to run a colder sparkplug, i run my stock sparkplug...?!
3-Timming/compression to advanced/high

all helps is apreciated thanks...and very sorry for my limited english!

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Old 08-08-2008, 07:12 PM   #2 (permalink)
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Posts: 137
gbajosh
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The accent engine is not ready for a 7 psi boost.

Why don't you drop the boost, or remove the whole turbo and put in a car that can handle it?
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Old 08-09-2008, 03:16 AM   #3 (permalink)
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Join Date: Jul 2008
Posts: 11
bowsercake
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I also think you might be pushing the accent too far and are hitting fuel cut. Without a standalone the ECU will always be holding you back. If you have enough money and time for a turbo setup you should have enough money and time to complete your setup correctly with proper fuel management.
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Old 08-11-2008, 09:50 AM   #4 (permalink)
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alexlab79
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you are comic!
the probleme is solved...is only the gap in spark plug!

my fueling is perfect, i am electronic/informatique tech and i have made my personal piggy back, it's run perfectly now, the gaz pressure is more with boost and hyundai ecm is cheated. he see very lean a/f ratio when i am in boost, i am able to control what ecm see with rpm and boost level. Another cheat, the Ecm believe i am at wot all time he see 2 psi and more, it's for fuelling based on O2 sensor when boost and not based on tps sensor

The Ecm see 148Kpa without problem! 148Kpa= 7psi of boost + 14.5psi(normal earth pressure)
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