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P0301 CEL only on idle
I just finished a rebuild on my 2000 boxster and I'm getting a sporadic P0301 only at idle. If the keep the engine above 1k rpm, it never gets the misfire. I done the following:
* Swapped coils and plugs with a couple other cylinders - still only 301
* Replaced cam follows and inspected the cradle
* During rebuilt I replaced variocam solenoids
* Inspected all electrical and vacuum connections to make sure they are connected.
* swapped O2 sensors from bank 1 with bank 2
Any thoughts on where to look next ?
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