FREE SHIPPING on Orders Over $50*

Fast Fuel Systems EZ-EFI Self Tuning Fuel Injection System Jeep CJ/YJ 4.2L w/ Inline Fuel Pump - 30295-KIT

universal fit logo


  • Fast Fuel Systems | Part Number: FST30295-KIT
  • Injection Type:Throttle Body
  • Fitment:Universal Fit
  • Kit Type:High Performance


  • The new EZ-EFI Jeep Kit with inline fuel pump kit is engineered specifically to work with the unique requirements of 1972-1991 Jeep CJ/YJ 4.2L, 6 cylinder applications. An exclusive FAST adapter plate for the throttle body eliminates the need to replace or modify manifolds, making this the only truly easy, bolt-on EFI kit for Jeeps on the market today. And the switch to EFI means no more stalling or choking out on inclines. Using EZ-EFI technology, the system is completely self tuning
  • there is no laptop or tuning experience necessary. Once the system is installed, it tunes itself as you drive. The kit contains an adapter plate and throttle body, weatherproof ECU, wiring harness, hand-held device and everything required for installation. This EZ-EFI system is equally suited for both highway or off-road driving.


Question & Answers

2 Answered questions

How many of these systems have you installed? Are the systems dependable for daily driving? I have a Holley on my engine now and it is a challenge on cold mornings. Does this EFI system start and run like EFI on newer cars? Once installed and tuned, does it stay tuned or do I have to constantly mess with it? Thanks in advance for feedback. Steve Morris

Asked by Steve from Madison, AL on

Hello Steve, we have sold a few of these kits but haven't installed any that I know of. This is supposed to be the easiest EFI kit to install and it's fully self-tuning once installed by the ECU computer that comes with the kit. This kit will eliminate all your hard starting problems in cold weather and will stop the fuel slosh in the carburetor bowl when on inclines when off-roading. You don't have to mess with it once it is installed it constantly tunes itself to weather and driving conditions just like a new vehicle does. It will be like night and day by getting that Holley off there and the performance you are going to gain. Thank you!

Answered by Bob H from Madison, AL on


Asked by Tman from Visalia, Ca on

The FAST EFI Fuel System is not CARB approved and cannot be used on the highway. It is for race/offroad usage only in the state of California. Thanks for you question and we look forward to helping you in the future.

Answered by Jamey P. from Visalia, Ca on