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Old 07-13-2008, 02:10 PM   #1 (permalink)
1_2_3_gone
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Unhappy ECU

i fixed on my AP1 (Spoon=air filter+throtle body) and
(Mugen=exhst manifold+full exhst) that made engine
hits 9000rpm easly but chk eng. light show on high speed
but in normal driving its ok...after a month of instlation
and racing lot it show again and stay, it refer
to the stock ECU wrong reading of the airflow on the
exhst sensors,some advice me to cover them with heat shield
but i didnt try yet...another advice to change to programable
ECU...but which one will be AEM-emanage..??
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Old 07-13-2008, 02:13 PM   #2 (permalink)
R32_S15_S2000
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Where is dezignpro04 when you need him....?
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Old 07-13-2008, 03:33 PM   #3 (permalink)
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Does the Mugen exhaust have an o2 bung and is it in? If not, it'll cause a CEL, but its kinda weird that it only does it at high rpm.
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Old 07-13-2008, 03:44 PM   #4 (permalink)
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Christ, I dont car about spelling. But I cant understand what you want? To many broken sentences. Would love to help.
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Old 07-13-2008, 03:47 PM   #5 (permalink)
dezignpro04
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Quote:
Originally Posted by R32_S15_S2000 View Post
Where is dezignpro04 when you need him....?
I would love to help, but after reading this my head hurts.

Do you still have the stock ECU? Throwing your car on a EMS will not prevent the CEL from showing up. Sounds like something wasn't installed correctly. There is a sensor in your headers as well as your testpipe\cat. Start there.
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Old 07-13-2008, 05:04 PM   #6 (permalink)
kgf3076
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Quote:
Originally Posted by D1sclaimer View Post
Does the Mugen exhaust have an o2 bung and is it in? If not, it'll cause a CEL, but its kinda weird that it only does it at high rpm.
It does and if the O2 sensor is in place, you don't get a CEL no matter what the RPM's are.
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Old 07-13-2008, 08:27 PM   #7 (permalink)
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Smile ECU

sorry for the english
o2 sensor only comes at the headers end,
probably replace the ECU with pypass pipe
will solve a lot, in US specs s2000 stock ECU
programed different than Gulf spec..(catlyst conv.)
which is not available in Gulf spec. guys .. love to
hear from you and your response was great

THANKS
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