This has been discussed over and over but I can't find a definitive answer to this one. 1982 ZX turbo now has a green case A18 602 043 2112 (lower numbers on case). I have a parts car- '83 280 ZX turbo that has a black case A 18 603 580 3Z24 (lower numbers on case). The '82 used to be an automatic transmission car. The car will not fire (no spark) with the A18 602 043 ECU. It runs really rough with the '83's ECU. I'm trying to figure out what the correct ECU is for this car: '82 ZX turbo, manual tranny, factory a/c, cruise control, t-tops. Vin# JN1CZ04SXCX628404. It has three plugs on the wiring harness for the ECU.