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How to Test Spark Plug Wires With a Multimeter
The Short Answer: Set your ohmmeter to the ohms resistance scale, disconnect the spark plug wire from both ends, and touch one probe to each end of the wire. Compare the resistance reading to the manufacturer’s spec, which is typically listed as ohms per foot. If the reading is significantly higher than spec, the wire…
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7 Signs of a Bad Throttle Body Sensor
The Short Answer: The most common signs of a bad throttle position sensor include erratic idle, dead spots when you press the gas pedal, a check engine light, hesitation or surging at cruise, poor fuel efficiency, stumbling on acceleration, and stalling or hanging RPM when returning to idle. All seven point back to the same…
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Direct Injection vs. Port Injection: How They Compare
The Short Answer: Port injection sprays fuel into the intake port before the intake valve. Direct injection sprays fuel straight into the combustion chamber. Both are forms of fuel injection, but direct injection is built for modern factory engines, while port injection is the better option for most classic cars, hot rods, street trucks, and…
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Vapor Lock: Causes and How EFI Prevents It
The Short Answer: Vapor lock happens when fuel in the line or pump gets hot enough to boil and turn from liquid fuel into vapor. A mechanical fuel pump can’t push vapor, so the engine starves for fuel and stalls. EFI prevents vapor lock by running fuel at higher pressure through a sealed system, keeping…
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How to Fix a Stiff Throttle | FiTech EFI
This video covers how you can improve a stiff throttle linkage on your FiTech EFI system. For Installation Questions: Tech Support Email: te******@*******fi.com Tech Support Line: (951)340-2624 For Tech Videos CLICK HERE: https://fitechefi.com/tech-center/ Visit: https://fitechefi.com/
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The Best Spot for A CTS Sensor | FiTech Tested
This video covers and compares the results of a CTS sensor installed in 4 different places on an engine, as well as revealing where the optimal location is for a CTS sensor. Be sure to follow FiTech’s suggested guidelines during installation to ensure proper operation of your system. For Installation Questions: Tech Support Email: te******@*******fi.com…
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EFI Handheld Initial Setup | Fitech EFI Install
You’ve installed your new FiTech EFI system in your vehicle and it’s time to setup your handheld system. This video walks you through some tips and tricks to get setup and ready to go. For Installation Questions: Tech Support Email: te******@*******fi.com Tech Support Line: (951)340-2624 For Tech Videos CLICK HERE: https://fitechefi.com/tech-center/ Visit: https://fitechefi.com/
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FiTech EFI Throttle Adjustment | How to Set IAC for Wild CAM Motors
Once you’ve got your new FiTech EFI system installed in your vehicle and fired up, it’s time to adjust your IAC. This video walks you through the steps to ensure correct throttle adjustment in reference to IAC steps. Here are some indicators and instances where you may need to make a throttle adjustment: For Installation…
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FiTech EFI Won’t Start After Install | How to Ensure Successful Ignition
Is your newly installed FiTech EFI system just cranking when you try to start it up, or does it fire and die? This video features some solutions and tips to ensure a successful ignition of your FiTech equipped engine! For Installation Questions: Tech Support Email: te******@*******fi.com Tech Support Line: (951)340-2624 For Tech Videos CLICK HERE:…
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How to Plumb a Dual Quad EFI System | FiTech EFI 2×4
When installing your FiTech Dual Quad 2×4 EFI system, you might wonder what the best ways to route your fuel lines are. This video covers different methods of plumbing your 2×4 setup, as well as a few other tips and tricks. For Installation Questions: Tech Support Email: te******@*******fi.com Tech Support Line: (951)340-2624 For Tech Videos…
