My s2000 has been plagued with misfiring that seems to be temporarily fixed lately by taking out my fuel injectors and cleaning them, however only to drive the car for another thousand kms or so until it starts slightly misfiring again, and gets progressively worse. I'm not sure whether I have a faulty injector or a possibly a faulty fuel filter. Has anybody experienced this or has some insight onto what this might be?
Thanks.

 

You getting any CEL error codes?

 

last proper valve adjustment?
darcy
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