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International Automotive Technicians Network
Re: P0401 - EGR flow insufficent
Posted to Technical Discussion Forum on 8/7/2010 2 Replies

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Hi Sam,

This is one of the few places where Mode $06 data is really useful.

When the PCM runs the EGR self test it starts at about 45% EVR duty cycle and increases EVR duty cycle until it hit... Login to read more.

2 Replies Received (View Replies)