ERIKC Cummns 0445120208 For BOS Diesel injector 0 445 120 208 Fuel Engine Injection parts 0445 120 208

ERIKC Cummns 0445120208 For BOS Diesel injector 0 445 120 208 Fuel Engine Injection parts 0445 120 208

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injector FAQ

FAQ: Do I need low impedance or high impedance injectors?

ERIKC Answer:This depends on the driver signal that your ECU delivers to the injector.

If you are using an OEM ECU (even if it is “flashed”), you need to measure the impedance of the OEM injectors and choose injectors that match the impedance category (high-Z or low-Z) of the OEM injectors. This is the simplest way to verify which type of injectors you need in order to make sure you don’t damage your ECU. See [“How do I know if my injector is low impedance or high impedance?”]to determine what injectors you have.

Many aftermarket ECUs are able to drive both low and high impedance injectors. If you have a concern regarding which you should choose you should contact the manufacturer of your ECU or refer to its installation manual to determine the best choice.

FAQ: If I have a choice, why would I choose a low-Z or high-Z injector?

ERIKC Answer:Until recently, most performance injectors with higher flow rates (900cc/min or more) would likely have been low impedance injectors. This is because in the older (fat body style) low impedance injectors (’80s and ’90s designs) had faster opening response times and generated less heat when they were being operated with proper peak and hold injector signals. This meant that at higher flow rates and lengthier duty cycles low impedance injectors would outperform their high impedance counterparts. Since so many of the performance injectors back then were low impedance injectors and they were actually better than their high-z equivalents, the common belief which still lingers today (though it is no longer correct) is that low-z injectors are the best for your high performance vehicle.