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Re: 2003 Toyota Sequoia p0171,p0174
Posted to Technical Discussion Forum on 8/13/2007 4 Replies

John,

I had a similar situation on a Tundra. Was unable to determine the cause of the longterm fuel trim adjustements and p0171 and p0174 codes.

Spoke with Toyota Tech Assistance. Was advised that use of E85 fuel can cause these symptoms. I spoke with the ... Login to read more.

4 Replies Received (View Replies)