whats the difference?? which is better?

 

Peak and hold you have to run a resistor box with on civics and tegs. Saturated you dont they just plug in and go.

Be prepared to be told to search. Its covered alot.

 

What are the differences between low impedance/peak & hold and high impedance/saturated injectors?

Low impedance injectors (1.5 to 4.0 Ohm) have a faster trigger times due to the type of electrical signal pattern emitted by the ECU. This “Peak and Hold” pattern uses a high (6 amp) initial current pulse to open the injector, and then a lower current signal to keep the injector open. Since the “hold” or lower current part of the signal has created a weaker magnetic field, the injector will also close quicker.

High impedance injectors (10 to 16 Ohm) are triggered by a low (1 amp) constant current signal and kept open by the same constant (saturated) current for the entire cycle. Due to the lower current needed, less heat is generated during each cycle allowing the injector to stay cool and therefore increase its reliability. The down side is that the trigger time is decreased since there is less of an initial current to actuate (open) the injector.

Most OEM injectors are saturated injectors since car manufacturers are most interested in reliability.

 

^^^^ Nicely explained, thanks.

 

for fuel milage i like High impedance injectors. I had some Low impedance injectors 880s and they sucked for cruising and idle

 

so low impediance peak and hold is better?

 

no they are old technology. get some new fic or id High impedance injectors.

 

love my id2000's