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International Automotive Technicians Network
Re: miss cyl 1 and 4
Posted to Technical Discussion Forum on 1/17/2018

likely 1 of 2 things

check intake gaskets, common issue at dead cold.

Check test or swap fuel injectors. I've replaced several though none recently.

If those do not repair the issue, buy a factory PCV valve. I am being serious. I chased 1-4 misfires on a... Login to read more.