3sgte swap, ECU Question Options

[115celi]

Basically, I am middle of a 2nd gen 3sgte swap and my wiring is setup for a 90-91 ecu (pinout from DR Tweak). It cranks but there is no spark. We have checked the igniter, coil, distributor and wires using the BGB from celicatech, and they all check out.

I went to google to see if I could find any info and ran across a web-site with some ecu part numbers. http://www.toysport.com/webpages/WebUpdate...A20ECU20WEB.htm
I found an ecu that had 89661-20760 for the part number and was wondering if there is a difference between this one and the 89661-20750?

I thought mine was right, I thought the part number on the ecu was 89661-20750 but part of the 5 is missing and it isn't really legible. I figured it was right based on the part numbers listed in a thread I found.
JDM 185 ecu's-
89661-20750=89/10-90/03(superceded to 20751)
89661-20751=90/03-91/08
89661-2b310=91/08-92/02
89661-2b280=91/08-93/09

Does anyone know if there is any difference between the ecus with 89661-20760 and 89661-20750, thanks.

[WannabeGT4]

You have a 90-91 ECU so if the doc did everything right the wiring should work fine with that ECU wether it's USDM or JDM... You'll just get an EGR code if it's a USDM ECU.

Most if not all 90-91 ECUs don't have the silk screening on the board. The 92-93 ECUs do and they also have the second circuit board.

Have you checked your fuses? Have you tested your coil and are you using the right spark plug wires for the 90-91 3SGTE? Are you getting fuel? What's the part number for your igniter? Have you contacted Dr_Tweak?