Toyota Corolla 1.4 D-4D Injector Fault P0200
P0200 injector circuit fault on Corolla 1.4 D-4D indicates injector electrical failure rather than mechanical wear. Check injector wiring harness before replacing injector. Injector replacement costs £150-300 each.
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No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Toyota Corolla 2004 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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