07-21-2018, 04:32 AM
(07-21-2018, 02:19 AM)likaon Wrote: Car from 1992, ecu...91-92.
suzuki swift 1992 g16a 1.6 16v fwd mk3
12v checked, grounds same. Was disconnected one ground, coonected it, now i have fuel pump ignition sound, pumping.
I have spark,tested on strobe tester, when in inject small amount of gas i have a ignition. i Dont step on throttle on cranking.
Crank posion signal unchecked, but i have spark so i think it must be good, but i will check it of course.
i understand boom thing, but now i try to run engine without turbo pipe, installed 2 lambdas, narrow and wideband, and egt sensor, oil reasure, oil temp and coolant temp. Only if car will run on n/a smooth, then i will try to connect a turbo.
H4 ecu is tbi ecu, are there any ecu working with g16a sensors and mpi ? I only know the swift gti g13b ecu.
What is pwm % signal to injector on cranking and low idle for mpi ?
Im not sure at all what ECU you have,.
but there are really only 2 kinds, injections dead.
CMP sensor dead but no you have spark so CMP is ok
some ECU have CKP sensors, and all of ours do 1996 and newer (EPA< laws, OBOD2)
some NOt our 96 , but others will not inject unless the CKP works, Ive no idea at all what ECU you are running.
does your ECU have CKP input?
if yes, if the sensor is COIL only sensor and not HALL the singles are horribly weak, 0.5v peak on a scope cranking is weak and normal
this is why , the CKP wire cable is shielded is yours shielded?
the hall verson of CKP is huge 4volt signals
so as you can see using the wrong CKP (means crank sensor) sensor, you have issues,
what matters here is what ECU is this, it has a full name and model, what is it?
is it a suzuki ECU off some, old swift, and off what swift, year, and country, you do know country matters right?
not all ECU are the same 1 engine world wide, due to laws in each country can be radically different
why not post a photo of the ECU tag first, then say why is there no injection
cranking Pulse widths (PWM) is 3 to 5 mS (Milliseconds on a scope) cold cranked, but the ECT sensor sets this,(water temp) cranked
after start the MAP rules this + ECT readings, and RPM
92 swift ECU
code 14 is dead ECT (wire cut is it most times) this code means the wires are not connected and reads 4-5volts dead wrong. open.
a dead ECT can read temps for North POLE, -100 degrees F.
and fill flood.
wish i saw your ECU, the tag on it.
32920-nnLnn USA MT
like that nn is number L is letter,
us = usa
mt = manual trans.
show your tag please so i can look up all cars it was fitted to,
with that can see all sensors it needs.
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