NA ECU Question - JDM or USDM?

rj_conerly

New Member
Jan 13, 2009
109
0
0
ruffin, nc
i heard from one off my friends that if you swap for a jdm engine you also have to swap to a jdm ecu? i know the jdm engines don't have the egr system and all that. but is this true. if you put on the egr system then do you still need the jdm ecu or not? any help would be great.
 

Supra87T

2-Tone BLUE
Feb 23, 2006
135
0
0
Cincinnati, OH
If you put the EGR back on you do not need the JDM ECU. The USDM ECU is tuned for the EGR to be there, so if it is not, (jdm engine) you may get detonation.
 

b4ublink

New Member
Nov 23, 2008
7
0
0
nyc
rj_conerly;1231635 said:
i heard from one off my friends that if you swap for a jdm engine you also have to swap to a jdm ecu? i know the jdm engines don't have the egr system and all that. but is this true. if you put on the egr system then do you still need the jdm ecu or not? any help would be great.

if you use egr youll need a usdm ecu.if you dont go egr youll need jdm ecu.
 

sneakypete

Regular Member
Jul 18, 2007
1,129
0
0
Central NJ
and good luck finding a jdm ecu for a turbo 7mgte with a manual transmission... ive been looking all over and cant find one. i do have a 7mgte for a auto trans jdm ecu
 

rj_conerly

New Member
Jan 13, 2009
109
0
0
ruffin, nc
sneakypete;1233832 said:
and good luck finding a jdm ecu for a turbo 7mgte with a manual transmission... ive been looking all over and cant find one. i do have a 7mgte for a auto trans jdm ecu

i got a na does anybody know where to get a jdm ecu and complete wiring harness?
 

92nsx

Supramania Contributor
Sep 30, 2005
2,957
0
0
Clearwater, MN
good luck with that there is over 5 other active members also looking for the same thing. You have any friends in Japan? Other wise just put the EGR back on or pick up your self a stand alone fuel management system.
 

rj_conerly

New Member
Jan 13, 2009
109
0
0
ruffin, nc
i got the egr already put in but i just wanted to go full jdm with the engine. i hate the egr system anyway it just doesn't appeal to me. but i'm going to keep looking for a jdm wiring harness and ecu hopefully i can find one soon. thanks again.
 

jdub

Official SM Expert: Motor Oil, Lubricants & Fil
SM Expert
Feb 10, 2006
10,730
1
38
Valley of the Sun
rj_conerly;1237723 said:
i got the egr already put in but i just wanted to go full jdm with the engine. i hate the egr system anyway it just doesn't appeal to me. but i'm going to keep looking for a jdm wiring harness and ecu hopefully i can find one soon. thanks again.

JDM tyte...YO! LMAO.

So reduced chance of part throttle detonation and increased gas mileage doesn't appeal to you...interesting :sarcasm:

BTW - This is a NA...it does not belong in the General section. Moved.