You must be in proper group:
Federal turbo or Calif turbo or Federal non-turbo or Calif non-turbo.
Then look under proper transmission.
ECU can have a NMC number or a JECS number the numbers are listed as NMC/JECS these are interchangeable.
This section only applies to ECCS/ECU part numbers for US bound 300ZX (Z31) models.
Turbo | Federal Emissions | California Emissions | ||
---|---|---|---|---|
Year | 5 speed NMC/JECS | Automatic NMC/JECS | 5 speed NMC/JECS | Automatic NMC/JECS |
1984 | 23710-02P02/A18-617370 23710-02P03/A18-635374 | 23710-02P12/A18-618371 23710-02P13/A18-636375 | 23710-02P06/A18-619372 23710-02P07/A18-637376 | 23710-02P16/A18-620373 23710-02P17/A18-638377 |
1985 | 23710-02P60/A18-635650 23710-02P61/A18-636654 | 23710-02P70/A18-636651 23710-02P71/A18-636655 | 23710-02P65/A18-637652 23710-02P66/A18-637656 | 23710-02P75/A18-638653 23710-02P76/A18-638657 |
1986 | 23710-19P02/A18-654M30 23710-19P03/A18-654M34 | 23710-19P12/A18-655M31 23710-19P13/A18-655M35 | 23710-19P07/A18-656M32 23710-19P08/A18-656M36 | 23710-19P17/A18-657M33 23710-19P18/A18-657M37 |
1987 | 23710-21P01/A18-680M90 | 23710-21P11/A18-681M91 | 23710-21P06/A18-682M92 | 23710-21P16/A18-683M93 |
1988 1989 | 23710-26P00/A18-A04M94 23710-26P01/A18-A04M46 | 23710-26P10/A18-A05M95 23710-26P11/A18-A05M47 | 23710-26P05/A18-A06M96 23710-26P06/A18-A06M48 | 23710-26P15/A18-A07M97 23710-26P16/A18-A07M49 |
non- Turbo | Federal Emissions | California Emissions | ||
---|---|---|---|---|
Year | 5 speed NMC/JECS | Automatic NMC/JECS | 5 speed NMC/JECS | Automatic NMC/JECS |
1984 | 23710-01P00/A18-613500 23710-01P10/A18-631504 | 23710-01P10/A18-614501 23710-01P11/A18-632505 | 23710-01P05/A18-615502 23710-01P06/A18-633506 | 23710-01P15/A18-616503 23710-01P16/A18-634667 |
1985 | 23710-01P60/A18-631660 23710-01P61/A18-631664 | 23710-01P70/A18-632661 23710-01P71/A18-632665 | 23710-01P65/A18-633662 23710-01P66/A18-633666 | 23710-01P75/A18-634683 23710-01P76/A18-634667 |
1986 | 23710-18P02/A18-650M20 23710-18P03/A18-650M24 | 23710-18P12/A18-651M21 23710-18P13/A18-651M25 | 23710-18P07/A18-652M22 23710-18P08/A18-652M26 | 23710-18P17/A18-653M23 23710-18P18/A18-653M27 |
1987 | 23710-21P61/A18-676M80 | 23710-21P71/A18-677M81 | 23710-21P66/A18-678M82 | 23710-21P76/A18-679M83 |
1988 1989 | 23710-25P00/A18-A00M84 23710-25P01/A18-A00M42 | 23710-25P10/A18-A01M85 23710-25P11/A18-A01M43 | 23710-25P05/A18-A02M86 23710-25P06/A18-A02M44 | 23710-25P15/A18-A03M87 23710-25P16/A18-A03M45 |
Depending on the year and whether you're a turbo or not, you can probably swap ECUs with another car and not have issues. It is very common for people to use automatic ECUs in their manual transmission cars. It has been reported, however, that people who use manual transmission ECUs in their automatics have difficulty with keeping the car idling.