Do low impedance injectors need a resistor box?
If your injectors are low impedance, unsaturated, then you need to use a resistor box which wires up to all the injectors. If they are high impedance, saturated, then you’re good to go.
How do you bypass injector resistor box?
One wire is power going into the resistor, the rest are power wires out of the resistor to each injector. To bypass the resistor what you need to do is connect all of the wires together that were going to the resistor. This will send full 12 volts to all of the injectors.
What is the difference between low impedance and high impedance?
A low impedance microphone will lower the impedance of the entire line connected to it. Similarly, if you connect a high impedance microphone, you will have a higher impedance line all the way from the microphone to the mixer. This can become a problem as the length of the cable increases.
What is a injector resistor box?
A resistor box is nothing more than a simple device that steps down current between the ECU and fuel injectors. It’s also not terribly difficult to wire up. For OBD-I vehicles, begin by locating the driver-side harness connectors near the brake master cylinder.
What is the difference between high and low impedance injectors?
High-impedance injectors, also called saturated fuel injectors, are sent a 11-1/2-amp current signal to open, and that current stays on until the injector closes. Low-impedance injectors, also called peak-and-hold injectors, are sent a more powerful electrical signal, usually around 56 amps, to open.
What ohms should injectors be?
There are two main types of injectors: low impedance and high impedance. A low impedance injector will have a resistance of around 2.5 to 3 ohms, while a high impedance injector will fall somewhere around 12 ohms.
Are Bosch injectors high impedance?
Genuine Bosch 36lb/hour Fuel Injectors These injectors flow 36 lbs/hr at 43.5 PSI ( 3 BAR ) and much more at higher PSI! In addition, these units are high-impedance. Despite the high flow rate, they are linear and controllable at low pulse widths.
Why do injectors have no power?
No power to the fuel injectors can be caused by a few things. If the relays, fuses, and computer all check out then I would move on to looking at the engine management and fuel system. A no start condition can also be caused by a faulty fuel pump, or any of the associated components.