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International Automotive Technicians Network
Re: Misfires under load. P0300, P0171
Posted to Technical Discussion Forum on 11/12/2015

Here is a technique that might give you a little diagnostic direction:

http://www.searchautoparts.com/motorage/drivability/using-fuel-trims-and-downstream-o2s-analyze-intermittent-misfire-concerns

Michael Joachim
Owner
Mike Joachim
Pelham, Alabama, USA