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96 Rav4 code p0303 if the fuel injector 3 gets no electrical connection can it be the ecu?

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96 Toyota Rav4 4wd with code p0303 if the fuel injector 3 gets no electrical connection can it be the ecu?

Vehicle: 96 Toyota Rav4 4wd

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It could be a broken wire, trace the wire to the ECU and check resistance, before replace the ECU

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