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17 Posts
Discussion Starter #1
hi guys..

i have problem with injector voltage, have 12.5v on black/yelow and only 3,5v from wires from comp..

What can be problem??
I start other car with this ecu, so ecu is good..

Car is eg 1.3 but i have change harness from d16z6..
Only thing i didnt change is wires on left side, but i have connected it on engine and ecu harnes..

All lights work, interior and exterior, all turn signal works..

I have good conection between injector and ecu..
 

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Classic Man
Civic
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16,355 Posts
The PCM controls the injectors by opening/closing the ground circuit.

Power is supplied from the ignition circuit. The ECU controls the ground.

You dont want to see voltage at the ECU injector wires.
 

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Take in mind that injectors were controlled by a pulse-width modulation signal also. So you will not see a full 12v voltage on inyectors at least there are running at 100% PWM
 
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