Series 4 & 5 Rx-7 ECUs ====================== VIN Year Model Trans Part Number EPROM ID's FC3??????????? 86 ?? Man N326-18-881B (079700-1283) 079753-0272/0282 FC3319G0126794 86 Base Man N326-18-881C (079700-1284) 079753-0273/0283 FC3??????????? 86 ?? Auto N326-18-881C (079700-1285) 079753-0274/0284 FC331XG0156144 86 GXL Man? N326-18-881C (079700-1286) 079753-0275/0285 FC3312H0510630 86** Sport? Man? N326-18-881C (079700-1287) 079753-0276/0286 FC3??????????? 86-88 ?? Man? N326-18-881C (079700-1288) 079753-0277/0287 FC3316H0527754 87 SE Man N326-18-881C (079700-1288) FC3327H0145600 87 Turbo Man N332-18-881 (079700-1363) 079753-0373/0383 FC3??????????? 88 ??? Man N327-18-881 (079700-1800) 079753-0277/0287 FC3??????????? 89 Base Man N350-18-881 (079700-2243) 079753-1043 FD3??????????? 93 ?? ??? N3A1-18-881R (9707979-381) 079753-1754 ** Possibly bad (4 lug, sun roof, power mirrors, possible aero package) (This information from my Pick-n-Pull junk yard explorations.) From FC3SPRO.COM (http://fc3spro.com/TECH/FAQ/ecutype.html): Year Model ECU ------------------------------------------- '84-'85 GSL-SE N304 '86-'87 All N/A N326 & N327 '87 Turbo N332 '88 All NA, except convertible N327 '88 Convertible N338 '88 Turbo N333 '88 Turbo, Japan/Euro N344 '89 California N350 '89 Federal (non-California) N351 '89 California, Convertible N352 '89 Federal, Convertible N353 '89 Turbo N370 '89 Turbo, Japan/Euro N380 Note: The N338 '88 Convertible ECU can be used in place for an '87 or '88 Turbo ECU. This bit of information furnished by Donnie Peters of the now-defunct Sun Auto. ----- FD ECU List ---------- N3A1 18 881R (Federal 5-Speed) N3A2 18 881R (Federal Automatic Transmission) N3A3 18 881R (California 5-Speed) N3A4 18 881R (California Automatic Transmission) ----- ***Message 8 from Dale Clark*** Just installed my Alldata CD-ROM of factory TSB's on my computer here at work. I'm just starting to find some interesting things. Here's a good list of all the "goodies" that are in the TSB's. Save this one, guys! :) *** ECU Part Numbers (this is the version # that's on the ECU itself) 84-85 GSL-SE N304 18 880A 86-87 NA N326 18 880 N3Y6 18 880 87 Turbo N332 18 880 88 NA N327 18 880 88 Turbo N333 18 880 88 Convertible N338 18 880 89 NA California N350 18 880 89 NA Fed. N351 18 880 89 Conv. CA N352 18 880 89 Conv. Fed. N353 18 880 89 Turbo N370 18 880 NOTE - If there's an "R" at the end, it's a remanufactured ECU. They also change the last 3 digits to "881". Example - '89 Turbo Reman. - N370 18 881R A remanufactured ECU isn't necessarily bad; it DOES mean the ECU was replaced.