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Re: JDM engine interchange
A 94+ USDM ECU will throw a code if it doesn't see an EGR temp sensor and solenoid (92-93 did not have the temp sensors, but will throw a code if the EGR solenoid is missing). It doesn't matter what the reading is, it just has to be physically plugged in. You could use the JDM engine, and just take off the intake manifold, swap the wiring harnesses, and plug in the EGR solenoid, and temp sensor. As long as they are plugged in and the EGR solenoid can move back and forth, it will function. Plug the lines on the EGR solenoid so it stays clean.
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'94 Laguna Blue LSi ~159k .......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project
'97 Ebony LSi ~137k #036 .......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod
Now a mod "over there"  ............Photo album
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