Barry Hicks Posted May 20, 2020 Share Posted May 20, 2020 2013 IS300H cylinders 3 and 4 not firing. plenty of fuel no spark. Its not the coils or the plugs. Checked out the wiring to ECU. Before I commit to a new ECU and the eye watering costs can any expert advise if I have missed anything. Any Help would be appreciated. car has only done 5500miles Quote Link to comment Share on other sites More sharing options...
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