Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

civic si 99 ecu fit in a 99 civic hx?

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Old Oct 21, 2003 | 06:20 PM
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Default civic si 99 ecu fit in a 99 civic hx?

would the si ecu fit the the hx
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Old Oct 21, 2003 | 07:06 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (AlienKrOZ)

I don't see why not. You might wanna try the EG/EK forum.
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Old Oct 21, 2003 | 07:16 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (Redline130)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Redline130 &raquo;</TD></TR><TR><TD CLASS="quote">I don't see why not. You might wanna try the EG/EK forum.</TD></TR></TABLE>
second that


but to answer the question...... YES.... bc both cars are OBDII..... the ecu pins are the same.
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Old Oct 21, 2003 | 08:11 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (AlienKrOZ)

No, I believe the HX uses the 96-98 style plugs.

brian g
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Old Oct 22, 2003 | 06:23 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (brian g)

thanks alot people
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Old Oct 22, 2003 | 07:55 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (AlienKrOZ)

Let us know how an HX performs when the 2nd intake valve doesn't engage until 5500 RPM
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Old Oct 22, 2003 | 07:59 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (Targa250R)

heres another question........why
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Old Oct 22, 2003 | 09:06 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">Let us know how an HX performs when the 2nd intake valve doesn't engage until 5500 RPM </TD></TR></TABLE>

lmfao
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Old Oct 22, 2003 | 10:01 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (citrEK)

96-98 = obd2
99-00 = obd2 enhanced
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Old Oct 22, 2003 | 11:25 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (sohc_boy)

99 Civic ECUs should be interchangeable.
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Old Oct 22, 2003 | 11:28 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (AzSi22)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzSi22 &raquo;</TD></TR><TR><TD CLASS="quote">99 Civic ECUs should be interchangeable.</TD></TR></TABLE>

99s are interchangable.

Do not use the SI ECU on the HX. The HX VTEC is supposed to engage at 2700.....NOT 5500!
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Old Oct 22, 2003 | 11:41 AM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (Spade)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spade &raquo;</TD></TR><TR><TD CLASS="quote">

99s are interchangable.

Do not use the SI ECU on the HX. The HX VTEC is supposed to engage at 2700.....NOT 5500!</TD></TR></TABLE>

true..
thats what the vtec-e is for so economy vtec kicks in earlier
but yes, interchangable
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Old Oct 22, 2003 | 12:00 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">Let us know how an HX performs when the 2nd intake valve doesn't engage until 5500 RPM </TD></TR></TABLE>

bwahahaha that was great
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Old Oct 22, 2003 | 12:19 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (SOHC_MShue)

I bet it will go into limp-mode.
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Old Oct 22, 2003 | 06:05 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (HybridcivicLS-T)

I wanted to know if it plugs in if i have confused anyone cause i know the 01 itr ecu doesnt plug in the 96 civic ex coupe but the gsr ecu plugs in the
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Old Oct 22, 2003 | 06:33 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (AlienKrOZ)

Naw i happen to know what its like when a hx has no vtec-e.
Someone toyed with my vafc oneday (reset it) and i found out the hard way.
Car took off good till about 3500rpms then it just starded screaming (at this point im thinking to my self WTF wondering if i blew off the itercooler piping)
At 5500rpms it felt like a 50 shot under the hood.
The tires chirpped HAHA.
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Old Oct 22, 2003 | 07:21 PM
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Default Re: civic si 99 ecu fit in a 99 civic hx? (AlienKrOZ)

Like I said above, I believe the 99-00 HX uses the 96-98 plugs not the 99-00 style. It won't plug in.

brian g
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