Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Air and Fuel› Fuel Injection Systems and Components - Electronic

Z Car Depot

FAST Fuel Injection Replacement Kit

Name: FAST Fuel Injection Replacement Kit
Brand: Z Car Depot
SKU: 650-251

$1,599.00

SKU: 650-251

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Z Car Depot 650-251 is a FAST fuel injection replacement kit for Datsun 280Z and 280ZX models from 1975-1983 (non-turbo). This kit replaces obsolete fuel injection components with modern, easy-to-find sensors and features a self-tuning ECU that requires no computer knowledge.

Installation is estimated at two hours and typically results in a fully tuned engine within 50 miles of driving. The system manages fuel delivery and will support up to 650 HP with engine modifications like larger cams or injectors. The stock ignition system remains unaffected.

Show original supplier description

The Z Car Depot 650-251 FAST EFI Retrofit Kit offers a modern solution for Datsun 280Z and 280ZX (non-turbo) models from 1975-1983. This comprehensive kit replaces outdated stock fuel injection components, including the ECU, airflow meter, and original sensors, with a user-friendly, self-tuning FAST EFI system. Installation is straightforward, with an estimated two-hour timeframe, and the system's self-tuning capability means the ECU will optimize engine performance within approximately 50 miles of driving. The kit is capable of supporting significant engine modifications, including larger cams, injectors, and headers, and can manage up to 650 horsepower. It includes the FAST EFI ECU, wiring harness, touchscreen interface, and all necessary sensors and adapters for the L28 engine, along with an AFM delete pipe. The original ignition system is not affected by this upgrade. Compatibility extends to the L28 fuel injection engine. It can also be adapted for L24/L26 engines with modifications to the fuel system (requiring high pressure) and the use of an L28 manifold with injectors. If your vehicle is not equipped with an oxygen sensor, a weld-in bung is included for installation into the exhaust system. Note that this system is specifically for non-turbo models and is not compatible with turbo cars. An optional plug-and-play fuel pump relay is available separately (PT# 800-1383).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Z Car Depot
Part Number	650-251
Category	Air and Fuel

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy