JDM ecu vs. USDM ecu
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Joined: Oct 2002
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From: Bartlett, Illanoise, USDM, i mean u.s.a
JDM ecu vs. USDM ecu
whats up guys, dunno if this is a stupid question, but nobody can answer me straight...well anyways whats the difference between the jdm and usdm ecu's???is there a higher redline bla bla bla bla->>>>>>>>>>>>&g t;> so yeah, just reply nething u know..if one is better or wutever....my friend has one in his house, and he said i can plug it in if i want so yeah.....thanks for the info
Honda-Tech Member
Joined: Feb 2000
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From: Toronto, Canada currently residing in ATL, GA, USA
Re: JDM ecu vs. USDM ecu (Cheeseman)
Yes and no. I had a JDM ITR ECU that came with my 98 spec ITR swap and I still needed to use a OBD1 to OBD2 jumper harness. I believe the plugs are the same as OBD2 but the ECU itself is OBD1 spec.
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From: Reppin the I R V
Re: JDM ecu vs. USDM ecu (Rev-gasm)
the plugs are the same as the usdm ecu, i've had both. I got the jdm one because it's less restrictive, and doesn't check for all the various sensors like the us ones. They also limit your cars top speed to about 110, although I haven't got up that high to test it.
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From: City, State
Re: JDM ecu vs. USDM ecu (NWP4LIFE)
the plugs are the same as the usdm ecu, i've had both. I got the jdm one because it's less restrictive, and doesn't check for all the various sensors like the us ones. They also limit your cars top speed to about 110, although I haven't got up that high to test it.
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From: So., Ca.
Re: JDM ecu vs. USDM ecu (ExOdy)
Too bad for you! 
how much does the jdm ecu sell for? usdm?
yeah that jdm speed limiter sucks nuts..
how much does the jdm ecu sell for? usdm?yeah that jdm speed limiter sucks nuts..
btw, i have 1 for sale if anyone wants it
[Modified by TypeR 599, 3:23 PM 10/3/2002]
Thread Starter
Joined: Oct 2002
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From: Bartlett, Illanoise, USDM, i mean u.s.a
cool
so, so far its the same plugs...reads knock sensor...mph cut off is 110mph, and how high is the rev limiter 116???whats that"116, cuz it sure cannot be 11,600rpms.....well thanks for all the info, i wont be throwin it in if it cuts off a 110...
but yeah, how high does the jdm ecu rev??
but yeah, how high does the jdm ecu rev??
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From: Milwaukee, WI, USA
Re: cool (Reid)
So what if i buy a 98 jdm itr engine, could i use a usdm ecu so I wont have the speed limiter on it?
Yes.
Yes.
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From: Canada, Japan, Europe, California
Re: JDM ecu vs. USDM ecu (Rev-gasm)
Well for one thing, the JDM PR3 revs to 84,000 and is designed to run on 98 octane min. (high octane in Japan is 98 to 100), and features a more aggressive Vtec A/F ratio, thats where the extra 5 ps comes in. OBD is a California regulation and shares similar regulations to that of to Japanese vehicles through federal regulations.
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From: Yokohama, Japan
Re: JDM ecu vs. USDM ecu (tnd2gen)
Well for one thing, the JDM PR3 revs to 84,000
PR3 ECUs are first gen non-OBD B16 ECUs and they revlimiter is at 8200 rpm on those units.
and is designed to run on 98 octane min. (high octane in Japan is 98 to 100)
and features a more aggressive Vtec A/F ratio, thats where the extra 5 ps comes in.
OBD is a California regulation and shares similar regulations to that of to Japanese vehicles through federal regulations.