FiTech Frequently Asked Questions – EFI FAQs

Posted by Alan MacDonald on

FiTech EFI Fuel Injection Canada

Frequently Asked Questions about FiTech EFI

Here are some great answers to the most common questions about FiTech Fuel Injection Kits. If there is anything you see here that needs clarification please Contact Us.



Do I need to tune my engine with the FiTech EFI Handheld controller or are the factory settings good enough for my car?

You only need the Handheld controller to do the initial setup of your system. After that, the computer takes over and provides you with a great factory set tune. You may want to “DIAL” it in for your particular application since it is easy and actually pretty fun and rewarding, but you do not have to!



Do I need to keep the Fi Tech EFI Handheld controller connected at all times for the system to function?

No, after initial setup you can disconnect the handheld and store it away for future tuning if necessary BUT it is such a cool feature to have you probably won’t want to!



Where do I mount the computer?

There is NO COMPUTER TO MOUNT! It is INSIDE the Go EFI under the FiTech logo where it belongs. No holes to drill and no harnesses to burn! The Perfect System!



When would I use a CDI box?

Use one whenever you would in a normal carbureted application. If you have one already, absolutely keep it! Our system works great with it. If you are expecting high RPMs, Boost, Nitrous… for sure you are going to want one BUT for the average street machine, you are fine without it. It’s up to you and your HP needs.



What type of intake can I use with a dual quad system?

The Go EFI Dual Quad kits are intended for use on inline configuration intake manifolds. The throttle bodies can be separated as much 12 inches center to center in the inline configuration. We can not guarantee the fitment of the dual quad systems on cross ram intakes.



Will this FiTech Fuel Injection system fit an Edelbrock dual quad manifold?

Yes, it was designed to fit them from the start.



Is there an advantage to putting the O2 sensor behind the X pipe to get a blended reading of both headers?

That’s a trade-off! While you would get a blended reading, the X pipe is far back in the system and would not react quickly. We find that one collector works fine and gives instant readings and fast response to the ECU. My vote is for the single collector!



How do I change the MAP sensor for BOOST?

You don’t need to! The ECU is equipped with an onboard 2.5 bar MAP sensor good to 25 psi.



Does your system have the same type of cold start/ warm up qualities of new cars? i.e. start, stay running, higher idle, then come down to idle rpm in cold weather that we expect?

FiTech is a group of OE engineers bringing you performance parts at an affordable price, and all of our new car ECU features are packed into our performance division products so YES, you can expect all of the new car performance out of the FiTech EFI products.



Does your product correct for altitude?

Yes, we have barro correction built in!



Do I need to boost reference the fuel pressure regulator?

Yes, you do on blow through systems. On roots draw-through blowers you do not.



Do I need any additional boxes i.e. MSD or firewall mounted driver boxes like the other brands?

No, you don’t, others claim to be all inclusive but you have to mount a box on the firewall for it to work and a CDI for the timing control to work. Plus the ECU that’s on the throttle body. That’s three boxes for one system! GO EFI is one throttle body that has EVERYTHING you need in one neat package.



Can I run race fuel?

Most race fuel contains lead which will permanently damage the oxygen sensor. Be sure to check with your race gas supplier to verify if lead is an additive.



Why are your FiTech EFI systems so inexpensive?

We like to answer that with another question. Why are the others so expensive? It’s a throttle body, 4 injectors, a few sensors and an ECU. Not much there when you really break it down. Our OE ties allow us to source components at a great rate and our engineering is spread over many projects so it is not all rolled into the price of one system. We have been designing OE systems privately for 16 years and believe that the only way the EFI will EVER replace a carburetor is if the cost gets more reasonable. We have been working to make that happen and this is the first step. Expect more in the future! Go EFI!



Still have questions about EFI? Contact US! If you send us your engine/vehicle info, we might have some additional insight.

Select FiTech Fuel Injection Systems in stock at Performance Improvements and ready for shipment! Don’t wait to get the hottest performance part for your ride.  All prices in Canadian dollars, no customs, duties, or border fees, 365-day return. Visit one of our locations or give us a call toll-free 1-877-471-6700. 




Read more about FiTech EFI

Be sure to check out the installation and tuning videos on FiTech’s web site

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