Newbie : what do I need for high-impedance injectors
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Newbie : what do I need for high-impedance injectors
I'm just trying to figure out which parts of the v3 board I will need to populate in order to use (4) high impedance injectors. Please tell me if the following is correct :
1) Current limit - not needed (okay I promise not to short circuit the wiring harness).
2) Active flyback clamp circuit- not needed.
3) Flyback PWM damping circuit - not needed
So, I'm thinking all I need is D17, R15, Q1 (and similar for INJ-2).
Will I gain anything performance-wise if I add (3) and use PWM, or is that strictly for low-impedance set-ups ?
TIA
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Bernard Fife
- Super Squirter
- Posts: 1009
- Joined: Mon Feb 16, 2004 3:15 pm
PWM is just for low impedance injectors, you will not gain anything using it on high impedance injectors.
In all cases you should install the active flyback circuit (step #70 in the manual). This includes R18, R33, D6, D20, Q3, and Q11. You do not need to install the PWM flyback dampping circuits (step #69).
Lance.