g16a no injector signal, error code 14

[fixkick]

Suzuki in 1992 have a g13b engine from suzuki swift gti, cultus gti, where was a 4 low impedance injectors in full group with one injector driver (http://www.rhinopower.org/ECUs/64E10/64E10.html)
I have 4 high impedance injectors with 4 ohms in line, spi injector is 1,2 ohm,so theoretically it should work in 4 injector full group, but I do not know the opening and closing times of mpi injections
So, maybe i'm wrong.?
I will try to find everything from spi and then try to fire it up.

theories: (IDK your injectors at all) nor that you have 1.3 parts married to 1.6 engine,
so you are trying to get a SPI single transistor to drive 4 injectors. (ok news to me that)
well you'd have to first make the 4 injectors happy, they need a pulse that is in spec, on each injector, (the data sheet on injectors cover that)
then you must drive all 4 in parallel and not overload the SPI transistor in side the ECU.
the SPI ecu run 1 injector at 1.2 OHMS via a series resistor. that tells you the this ECU cant drive the stock 1.2ohms directly. so the resistor was used.
our G16-TBI has no such resistor.

now more theory, did you know the injectors are PWM modulated. and why>
why, so the injector is not overheated.
and is tuned to the injector Pintle valve mass, exactly, if you use the wrong injector this PWM modulation is no good, now.
you need to get the pulse voltages right and the PWM modulation right. (2 things, right, and the 3rd is the fuel mix pulse right)

here it is PWM , on 1.6L TBI sidekick/tracker/vitara's off my scopes. (hand drawn as scope photos are super hard to capture live)

http://www.fixkick.com/INJECTORS/TBI-pwm-wave1%20.jpg

and the flow rates are here, (after cleaned)TBI sidekick.

http://www.fixkick.com/INJECTORS/witchHunterTBIspec.jpg


how that helps you . cheers