Are my injectors high or low impedance?
Are my injectors high or low impedance?
How do I know if my injector is low impedance or high impedance? You can measure the resistance across the two electrical terminals of the injector. If the resistance is between 1.5 and 4.0 Ohm you have low impedance injectors. If the resistance is between 8 and 16 Ohm you have high impedance injectors.
Do low impedance injectors need a resistor box?
Running low impedance injectors without a resistor box will substantially increase the temperature of the transistor driver IC due to the increase in current flow. The temperature increase will depend on your driving. If that temperature remains high enough for long enough the driver transistor will be damaged.
What is the difference between high and low impedance?
High impedance circuits are low current and potentially high voltage, whereas low impedance circuits are the opposite (low voltage and potentially high current). In audio systems, a high-impedance input may be required for use with devices such as crystal microphones or other devices with high internal impedance.
What should the resistance of a fuel injector be?
They will range from 12 to 17 ohms. Low impedance injectors are found on high performance and larger injectors. They have much lower resistance, typically around 2-5 ohms. Step 5: Repeat with all injectors. They should all have a resistance within half of an ohm from each other.
How does fuel injection work in a 1994 Corvette?
The 1994-1996 OBD computer system utilizes mass-air and MAP sensors to control fuel delivery. The 1994-1996 cars utilize sequential fuel injection, which means fuel is injected only when needed. These cars have better fuel control and respond better to high performance modifications.
How many ohms does a high impedance injector have?
High impedance injectors are the most common found on cars these days. They will range from 12 to 17 ohms. Low impedance injectors are found on high performance and larger injectors. They have much lower resistance, typically around 2-5 ohms. Step 5: Repeat with all injectors. They should all have a resistance within half of an ohm from each other.
What was the first fuel control system for corvettes?
Speed density was the first fuel control system used on 1982-1984 Corvettes. It was also used on the 1990-1993 cars. Speed density uses a manifold absolute pressure sensor (MAP sensor) to calculate the necessary fuel load.
They will range from 12 to 17 ohms. Low impedance injectors are found on high performance and larger injectors. They have much lower resistance, typically around 2-5 ohms. Step 5: Repeat with all injectors. They should all have a resistance within half of an ohm from each other.
The 1994-1996 OBD computer system utilizes mass-air and MAP sensors to control fuel delivery. The 1994-1996 cars utilize sequential fuel injection, which means fuel is injected only when needed. These cars have better fuel control and respond better to high performance modifications.
High impedance injectors are the most common found on cars these days. They will range from 12 to 17 ohms. Low impedance injectors are found on high performance and larger injectors. They have much lower resistance, typically around 2-5 ohms. Step 5: Repeat with all injectors. They should all have a resistance within half of an ohm from each other.
Speed density was the first fuel control system used on 1982-1984 Corvettes. It was also used on the 1990-1993 cars. Speed density uses a manifold absolute pressure sensor (MAP sensor) to calculate the necessary fuel load.
