DTC - P0201, P0202, P0203, P0204 (FUEL INJECTOR)
TROUBLESHOOTING HINTS
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If the engine is hard to start when hot, check for fuel pressure and injector leaks.
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If the injector does not operate when the engine is cranked, then check the following:
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Faulty power supply circuit to the ECM and faulty ground circuit
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Faulty MFI control relay
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Faulty crankshaft position sensor and camshaft position sensor
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If there is any cylinder whose idle state remains unchanged when the fuel injection of injectors is cut one after another during idling, check for the following items about such cylinder.
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Injector and harness
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Ignition plug and high tension cable
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Compression pressure
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If the injection system is OK but the injector drive time is out of specification, check for the following items.
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Poor combustion in the cylinder. (faulty ignition plug, ignition coil, compression pressure and etc.)
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The MIL is on or the DTC is displayed on the SCAN TOOL under the following condition.
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When the injector itself is faulty