Nissan Zexel Ecu Pinout -

Diesel injection pump ECUs

This is a specialized request, as "Nissan Zexel ECU" typically refers to (often found on Nissan Terrano, Nissan Mistral, Ford Maverick, or older Nissan Patrols with the TD27T or RD28 engines) or an early Nissan ECCS unit that used Zexel components.

engine. Because pinouts vary significantly between production years and specific Zexel hardware revisions (such as the MSA15), always verify your specific ECU part number before making permanent wiring changes. 1. Universal Connector Identification nissan zexel ecu pinout

Next Sam traced sensors. With the engine cold, one input rose and fell as the engine warmed; that was coolant temperature (ECT). Another varied smoothly with throttle movement — the throttle position sensor (TPS). Crank and cam signals needed a scope, but a quick test with a timing-light-style pickup when cranking showed pulses on one pin: Diesel injection pump ECUs This is a specialized

Pinout Layout

Sam had just inherited an old Nissan 240Z from their uncle — a sleeping beast with a rumpled paint job and a wiring harness full of mystery. The engine turned over but wouldn’t run right. In the garage by noon, Sam found the ECU: a rectangular metal-cased Zexel unit stamped with part numbers and a connector full of pins. No wiring diagram came with the car, and online searches returned a scatter of forum posts. Sam decided to treat the problem like a puzzle and learn the ECU’s pinout. Locate the black sticker on the ECU case

Zexel was originally a joint venture between Diesel Kiki and Bosch. In the 1990s and early 2000s, Nissan equipped its heavy-duty diesel engines with electronically controlled inline injection pumps (often called the "Zexel pump"). Unlike common rail systems, these pumps use a mechanical governor assisted by electronic trimming via the ECU.

  1. Locate the black sticker on the ECU case. Note the 10-digit Nissan part number (23710-XXXXX) and the Zexel engineering number (A11-XXX-XXX).
  2. Search for the “Nissan Fast” or “EPC” database. These parts catalogs include connector views.
  3. Consult the official Nissan Service Manual (FSM) for your chassis. Look for the “Engine Control System” section – specifically the “ECU Harness Connector” diagram.

During the 1990s and early 2000s, Nissan partnered with Zexel to supply ECUs for their off-road and commercial diesel engines. The most common applications include:

For example: