1986 Nissan 300ZX Turbo Z31 VG30ET 5-Speed Manual ECU / ECM (Engine Computer Unit or Engine Computer Module)
JECS Part Number: A18-654 M30
Nissan Part Number / Cross Reference: 23710-19P02
Large ID / Calibration Marking: 26
Genuine OEM Nissan / Japan Electronic Control Systems (JECS) engine control computer removed from a 1986 Nissan 300ZX Turbo Z31 equipped with the VG30ET 3.0L turbocharged V6 and 5-speed manual transmission.
FITMENT
Identified application for A18-654 M30:
A18-654 M30 is identified as the Federal-emissions Turbo/manual ECU and cross-references to Nissan 23710-19P02.
Nissan used multiple ECU versions for 1986 depending on turbo/non-turbo, transmission and emissions configuration. Please match A18-654 M30 / 23710-19P02 to your original ECU or verify interchange before purchasing.
BENCH TESTED
This ECU was powered and functionally checked on the bench prior to sale.
Testing confirmed:
• ECU powers up normally
• Approximately 0.78A initial current draw
• Current stabilized at approximately 0.61A
• Both onboard red and green diagnostic LEDs operate
• ECU successfully executes its onboard self-diagnostic routine
• Diagnostic LEDs successfully displayed input-related diagnostic codes
• An external ECU input circuit was electrically stimulated during testing and the ECU responded to the change
Diagnostic codes produced during bench testing are expected because the ECU was tested outside the vehicle without its engine sensors, switches and other inputs connected.
Testing confirms that the ECU powers up, its onboard processor and diagnostic system operate, and the tested external input circuitry responds.
CONDITION
Used OEM electronic component. Connector terminals are in good condition with no obvious major physical damage or signs of water intrusion. Normal cosmetic wear, oxidation and discoloration are present on the metal case from age and use. Please review photos for exact condition.
IMPORTANT
Please verify A18-654 M30 / 23710-19P02 against your original ECU before ordering. This ECU is specifically identified for a 1986 Nissan 300ZX Turbo VG30ET, 5-speed manual, Federal-emissions application.
No VIN programming or immobilizer pairing is normally required for this generation ECU. Verify the part number and vehicle application match your original unit before installation.
This is a genuine OEM used part that has been individually photographed and described as accurately as possible. The item shown is the exact item you will receive.
🔧 Verify Compatibility
Please match part numbers, connector styles, and other identifying details before ordering. Donor vehicle information is provided as a reference only. Matching your original part number is the best way to ensure proper fitment.
⚠️ Installation Costs
Please verify compatibility before installation. If a return is approved, it is for the purchase price of the part only. Installation, removal, diagnostic, programming, labor, towing, rental vehicle, and other related expenses are not covered or reimbursed.
📦 Fast Shipping, Carefully Packed
Orders are typically shipped within 1 business day and packaged carefully to help ensure safe delivery.
💬 Questions Welcome
If you have any questions before or after your purchase, please send us a message. We appreciate your business and the opportunity to help keep quality OEM parts on the road.
Only the Parts Worth Pulling