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Igniter Circuit Malfunction Bank 5

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I hope somebody can help, I own for many many years a RX - 300 1999, but at this moment it is running on 5 cylinders ( missing one ) I am getting three OBD II codes : P 0305, P 1300 and P 1320. According to this information Cylinder # 5 is not working. I changed already the position of the coils packs, sparkplugs and cleaned all injectors. I did a compression and leakdown test, all looks good. I did check all voltages / grounds and puls signals at the coils ( backprobed ) with a oscilloscoop, all looks good and mesurement are all the same ( between the 6 coil packs ). I have no idea, who can help !!

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