Z1 Motorsports EFI Engine Wiring Harness 300ZX 5 Speed Manual 1990-95 , Performance OEM and Aftermarket Engineered Parts Global Leader In 300ZX 350Z 370Z G35 G37 Q50 Q60 - Z1 Motorsports
place
expand_more
close
check_circle_outline Added to Cart
Z1 Motorsports EFI Engine Wiring Harness 300ZX 5 Speed Manual 1990-95
shopping_cartCart
payment

Checkout

Discover More Products

Nissan 300ZX (Z32) Valve Cover Gasket Kit
Nissan 300ZX (Z32) Valve Cover Gasket Kit
$52
OEM 300ZX (Z32) Plenum Gasket
OEM 300ZX (Z32) Plenum Gasket
$7.94
Z1 300ZX Silicone Master Hose Set
Z1 300ZX Silicone Master Hose Set
$308
EGR Elimination Kit
EGR Elimination Kit
$38
300ZX Fuel Injector O-ring Set
300ZX Fuel Injector O-ring Set
$23
Z1 Motorsports 300ZX (Z32) Urethane Motor Mounts
Z1 Motorsports 300ZX (Z32) Urethane Motor Mounts
$178
close

Z1 Motorsports EFI Engine Wiring Harness 300ZX 5 Speed Manual 1990-95

Fits models: 300ZX

Product Description

Z1 Z32 5sp EFI Wiring Harness NA & TT

Due to the age of our cars and high heat conditions under the hood, the original connectors and wiring on the engine wiring harness tend to break to pieces and cause all sorts of issues including hesitation, running on less than 6 cylinders, and even stalling. We usually suggest taking the opportunity to change this harness if the engine is out of the car on any Z32 with over 100,000 miles.

As our cars age, Original Equipment Nissan parts are being discontinued making a proper high quality harness difficult to find. Thorough examination of the OE harness and electrical system on a component basis led to our approach. After testing and inspecting the few options available on the market, finding common shortcomings, "issues" and failure points we decided that a no compromise approach was the solution. We set forth an extensive list of design goals and product requirements; we believe it has led us to nothing short of the best part available for this application.

Connectors

One of the most important components on a 300ZX's wiring harness is the connectors. Over time these connectors become brittle from age and exposure to high temperatures. We have elected to use only the highest quality OE grade Sumitomo connectors to ensure a proper connection to all critical underhood electrical parts and long service life. Critical connectors are front and rear weather sealed preventing corrosion from exposure to moisture.

Weather sealed connections: To extend the longevity of the harness we have chosen to utilize the most up to date weather pack early style connectors like Injector, Coolant Temp, Idle & Fast Idle, EGR, PRVR, TPS, MAF & CAS.

New style JECs style connectors maintain the oem function and fit for weather seals and internal terminal locks for New Style Injectors, Crank Angle, PTU.

No tentacle monster harness here. Our harnesses feature a clean install with no extra apendages for duplicate application like crank angle style connection or injector harnesses hangin off in the engine bay. 

ECU Connector

Connectivity is core to seamless power, signal and data for vehicles. Z1 uses high quality Tyco ECU connectors to ensure solid connection between ECU and EFI harness while also providing reliable performance in harsh environments, such as extreme temperature variations and vibrations. This connector features a replacable ECU bolt which means throughout the many years you own your Z, if the included bolt ever breaks, like some factory aged bolts do, you can replace just the bolt without having to remove or replace the EFI harness.

In an effort to minimize faliure points or voltage drops against connections, Z1 has opted to build the EFI harness with direct connections from ECU to the injector terminals without using a cost cutting patch harness. Because of this, there is no potential for faliure or line interuption between ECU and injectors. This is identical to how Nissan developed the original factory harness. Rather than minimizing our inventory investment like many others, Z1 has determined that potentially sacrificing injector performance, consistency, and safety of the engine is not worth seperating the injector harness.

Optional:

Z1 also recommends replacement of the following harnesses when replacing the EFI Harness. These two optional harnesses are critical for proper operation and suffer from the same faliures as the EFI harness.

Features:

  • Late model Switched Power Injector Configuration 
  • Support For Factory Boost Control Solenoids
  • Current OEM Sumitomo Connectors
    • Front and Rear Weather sealed
  • High Quality ECU Connector
    • With Replaceable Bolt
  • Includes OE Type Stays for Factory Harness Clips
  • Discreet Harness Tags
  • High Quality Firewall Boot & Thermal Barriers
  • Single Core Shielded Wire for ALL Signal Wire
  • OEM Wiring Crimps & Heat Shrinked Splices 
  • PTU-Relocation Standard
    • New Style PTU Support ONLY
  • 50 State Legal! EGR Temperature Sensor Supported

    Fits:

    • 1990-1995 Nissan 300ZX 5 Speed Manual Transmission Models
      • Non-Turbo
      • Twin-Turbo

    Available in the following configurations:

    • New Style: With New Style CAS, Injector
    • Old Style : With Old Style CAS, Injector
    • Hybrid: With Old Style CAS, New Style Injector

    Currently Available for Factory 5 Speed Models Only - Underhood Fuse Panel Connections sre not the same for Automatic models. This harness will NOT work on Automatic or 5-Speed Manual conversion cars.

     

    *** This item does not qualify for any additional discounts or promotions ***

    Available Options:

    Please review the product description if you are unsure about any of the options below.

    Harness:

    Include:
    Include:

    Quantity:

    List Price: $548.00
    Special Price: $488.00
    You Save: $60.00 (11%)
    add_shopping_cart Add to Cart
    commentLeave a Review question_answerAsk A Question About This Product

    Customers who bought this item also purchased ...

    Nissan 300ZX (Z32) Valve Cover Gasket Kit
    Nissan 300ZX (Z32) Valve Cover Gasket Kit
    $52
    OEM 300ZX (Z32) Plenum Gasket
    OEM 300ZX (Z32) Plenum Gasket
    $7.94
    Z1 300ZX Silicone Master Hose Set
    Z1 300ZX Silicone Master Hose Set
    $308
    EGR Elimination Kit
    EGR Elimination Kit
    $38
    300ZX Fuel Injector O-ring Set
    300ZX Fuel Injector O-ring Set
    $23
    Z1 Motorsports 300ZX (Z32) Urethane Motor Mounts
    Z1 Motorsports 300ZX (Z32) Urethane Motor Mounts
    $178

    Similar to this item

    Z1 Motorsports Urethane Rear Differential Bushing Set
    Z1 Motorsports Urethane Rear Differential Bushing Set
    $90
    Z1 Coolant Bleeder Port - Heater Hose
    Z1 Coolant Bleeder Port - Heater Hose
    $34
    Z1 Motorsports 350Z / G35 Aluminum Undershroud
    Z1 Motorsports 350Z / G35 Aluminum Undershroud
    $184
    Z1 Motorsports 370Z / G37 Cold Air Intake Kit
    Z1 Motorsports 370Z / G37 Cold Air Intake Kit
    $498
    350Z / G35 Front Lower Ball Joint
    350Z / G35 Front Lower Ball Joint
    $48
    Z1 350Z/G35 VQ35DE Plenum Spacer
    Z1 350Z/G35 VQ35DE Plenum Spacer
    $198