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Well I figured it out on my own in case anyone else has this problem....
The RB20det ecu along with the series 1 RB25 ecu have dedicated circuits for each injector this means that there is one power and then they fire with a controlled ground. Each ground is controlled by the ecu so the ecu tells each injector when to fire, how long to fire, how often, etc. In other ECU's for other models and other companies there aren't dedicated circuits they are on shared circuits. In other words cyl 1 and 4 will be on one circuit and 2 and 5 on another and 3 and 6 on another.
So the answer is yes the circuitry for an injector can fail in the ECU and in my situation did
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Originally Posted by mantas
One more thing - i hate your prius.
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Namaste mother f**ker
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