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About DAVRPES Brand
DAVRPES Brand is a brand under Guangzhou Gebang Qiche Lingbujian Youxian Gongsi. Our company focuses on providing after-sales products of auto parts in line with OEM standards, professional after-sales service team, huge production chain, and optimized resources from the original factory. Customers provide high-quality products.
When does the fuel injector need to be replaced?
If an injector is faulty on a vehicle with high mileage chances are the remaining injectors are in a similar condition, or will be in the near future. Replacing your injectors as a set ensures each cylinder is receiving the same amount of fuel leading to better performance and improved fuel economy. Since the time required to replace a single injector is about the same as replacing all the injectors it is recommended to replace them as a set.
The Role of the Fuel Injector :
The engine ECU will issue fuel injection commands to the fuel injectors according to the engine's operating conditions. The fuel injection volume is determined by the fuel pressure and the fuel injection time of the fuel injectors. The fuel pressure is controlled by the pressure regulating valve at the fuel rail, and the pressure of the fuel pressure regulating valve is adjusted by the manifold vacuum (engine load), so the ECU can control the fuel injection time, when the engine needs more fuel , The fuel injection time will be longer, otherwise the fuel injection time will be shorter.
Symptoms Of Problematic Fuel Injectors ！！！
a. Check Engine Light/Misfiring engine caused by a change in the injector's flow
b. Noticeable fuel odor caused by leaky injector
c. Reduced gas mileage caused by an incorrect injector spray pattern
d. Inconsistent engine idling, hesitation or stalling caused by dirty injectors due to low quality fuel
Why Choose DAVRPES Brand Fuel Injector！！！
a. Guaranteed OE fit, form and function
b. Provides precision flow and original spray pattern for optimal performance
c. Manufactured of the highest quality materials d. Product includes top and bottom mounting o-ring
e. Maintains new-car smoothness and drivability
How to Test Fuel Injectors
Part . Listening for Bad Fuel Injectors
(1) Put on the appropriate safety gear. And Open the hood and locate your fuel injectors.
(2) Find a long metal rod or screwdriver. Then Place the tip of the rod on a fuel injector.
(3) Bring your ear close to the rod and listen for clicking.
(4) Repeat these steps for each injector.
Part 2. Ensuring the Injectors Are Receiving Power
(1) Turn the key to the “on” position without starting the engine.
(2) Connect a test light to the negative terminal on the battery.
(3) Locate the two wires going into each injector. And Test each wire for voltage. Then Repeat the process for each injector.
Part 3. Checking the Trigger Circuit for the Injectors
(1) Connect a test light to the positive terminal of the battery. And Have a friend start or turnover the engine.
(2) Probe the opposite wire with the test light. And Look for flashing or flickering light.
(3) Disconnect the wiring clips to each injector and begin the test again.
Al
Reviewed in the United States on May 6, 2025
Used, Damaged, Defected items, don't trust this individual.
Simba
Reviewed in the United States on April 22, 2025
Works the way supposed to be
Chantres
Reviewed in the United States on April 13, 2025
It works well, it seems to be original and repaired, the only bad thing is that they erase the code and it cannot be programmed.
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