LAST UPDATED: October 21, 2019
Best Fuel Pressure Testers: Diagnose Fuel System Issues at Home
Diagnose symptoms caused by incorrect fuel pump pressure with these top fuel pressure testers
The Review Team
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PUBLISHED ON October 21, 2019
Replacing your vehicle’s fuel filter or fuel injectors is expensive, but unless you know it's definitely an issue with the fuel system, diagnosing the problem can be just as costly. A fuel pressure gauge kit can help you identify if it's your fuel line, fuel pump, or something else entirely. Save yourself some time and money with these top fuel pressure tester kits.
Information in the booklet regarding correct pressure levels for different vehicles may not be entirely accurate.
Includes a wide range of adapters and fittings to cover most domestic and imported vehicles. Includes instruction manual.
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- Before testing your fuel pump pressure, make sure you’re parked on flat ground and at least 50 meters away from any open flames or other ignition sources.
- Check your fuel pressure twice, with and without the engine running, to properly test the system. The fuel pressure should increase a little if you hit the throttle and, ideally, stay the same while idling, but it’s okay if it drops slightly. Any other results may indicate you have a problem somewhere in your fuel system.
- Make sure to check whether the fuel pressure tester kit you want includes the correct fittings and adapters by consulting the manual and the product specifications
Q: How do I know if I have low fuel pressure?
A: You won’t know for sure until you test it, but symptoms of low fuel pump pressure include struggling to start the engine, backfiring and stalling, or hesitating when driving.
Q: What is the range for normal fuel pump pressure?
A: Pressure requirements vary, so we recommend checking the correct fuel pressure for your specific vehicle in the manual. But, as a reference, normal fuel pump pressure is generally between 45 and 58 psi (or 3.2 to 3.4 bar).
Q: What happens if fuel pump pressure is too high?
A: High fuel pressure forces more fuel through the fuel injectors than is needed. This can cause black exhaust smoke and an increase in emissions, which may result in damage to your catalytic converter.
The BETOOLL Pro Fuel Injection Pressure Tester Kit comes with a comprehensive range of adapters and fittings and is our best overall fuel pressure tester.
Our best value fuel pressure tester is the Equus 3640 Professional Fuel Injection Pressure Tester.