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injectors no responce
Posted: Thu Nov 18, 2010 4:49 pm
by Fera
Hi guys. I am new to the forum
I'm from Argentina .. and my English is based on a translator ..
so excuse me know
I read a lot of the forum. looking for my problem ... and nothing.
I have a v3.0 ms2
my problem is this ..
I have no voltage at the injectors
eh tried many things ...
the car was working perfectly .. and a day to the next did this happen
I have high impedance injectors
any ideas?
I think that something was burned in changing the characteristics of the nozzle to a low impedance test that I have
thanks
Re: injectors no responce
Posted: Fri Nov 19, 2010 12:49 am
by trakkies
You can do a basic check with a stim. The single injector LED on the MS flashes with the processor - the two on the stim with the injection drivers.
Re: injectors no responce
Posted: Fri Nov 19, 2010 7:21 am
by Fera
I have no stim
but when you start the car will not start any led.
just flickers to give the ecu 12v
any ideas?
I'm about to test the Troubleshooting Your V3 MegaSquirt ® Main Board
Re: injectors no responce
Posted: Mon Nov 22, 2010 6:42 am
by Matt Cramer
The MegaSquirt should not be sending voltage to the injectors; they should get the voltage from the same relay that gives the MegaSquirt voltage. Check your wiring.
Re: injectors no responce
Posted: Wed Nov 24, 2010 5:48 pm
by Fera
Matt Cramer wrote:The MegaSquirt should not be sending voltage to the injectors; they should get the voltage from the same relay that gives the MegaSquirt voltage. Check your wiring.
wiring is excellent ..
the problem was the U4
.. now I have a new problem .-
the number 2 injector bank is continuously open
any solution?
Re: injectors no responce
Posted: Thu Nov 25, 2010 1:54 am
by trakkies
Fera wrote:Matt Cramer wrote:The MegaSquirt should not be sending voltage to the injectors; they should get the voltage from the same relay that gives the MegaSquirt voltage. Check your wiring.
wiring is excellent ..
the problem was the U4
.. now I have a new problem .-
the number 2 injector bank is continuously open
any solution?
If one bank is working normally, it must be a problem in the driver circuit or wiring to the other one. A stim would show if the MS is ok as it has two LEDs for the injector circuits. And makes things easier for fault finding in the MS on the bench. It's not so easy to check voltages etc within the MS on the car.