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International Automotive Technicians Network
Re: Can secondary air cause a drivability problem?
Posted to Technical Discussion Forum on 1/10/2024

John I too am thinking fuel-control issue.

I would graph some PIDs when the problem occurs, and repeat at the same intersection after the vehicle is fully warm and the symptom is gone.

I would think that the Toyota would be in closed-loop after a half-mile... Login to read more.